Summary
Plan status as of 2026-09-30: Approved, expires 2030-06-29. Plan: Dallas County (FEMA plan 110535), approved 2025-06-30.
Since the plan was approved on 2025-06-30: no new federal declaration.
NOAA Storm Events records since that date: 90 records (data through 2026-06-30).
Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($323,744,956 a year), Heat Wave ($288,425,212) and Hail ($127,529,748).
Repetitive-loss flood properties now: FMA RL 31, SRL 67 (44 CFR 77.2); any definition: 254.
The tables that follow are organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B (B1-a to B2-c); each heading says which item its tables support.
Plan clock
- Status:
- Approved, expires 2030-06-29
- Plan:
- Dallas County (FEMA plan 110535)
- Approved:
- 2025-06-30
- Days to expiry:
- 1,368
What changed since your last plan (approved 2025-06-30)
- New federal declarations:
- none
- Storm Events records since approval:
- 90 records (data through 2026-06-30)
- Repetitive loss now:
- FMA RL 31, SRL 67 (44 CFR 77.2); any definition: 254
- Repeat-flood change:
- this release sets the baseline count.
Sources: 1, 2, 4, 6 (numbered list at the end)
Plan status for every jurisdiction listed in this county: 33 rows, in the section "Plan clock: Plan status for every jurisdiction listed in this county" on the following pages.
State plan status and tribal plans in this state: see the state page.
Plan clock
Plan status for every jurisdiction listed in this county
Source: 1
| Jurisdiction | Type | Status | Plan | Approved | Expires | Days to expirynegative = days since expiry | Update underway | Notes |
|---|---|---|---|---|---|---|---|---|
| Dallas County | County | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | ||
| Addison town | Town | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Balch Springs city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Carrollton city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Cedar Hill city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Cockrell Hill city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Combine city | City | Approved, expires 2027-03-10 | Kaufman County (FEMA plan 107854) | 2022-03-11 | 2027-03-10 | 161 | this jurisdiction approved 2024-02-08 | |
| Coppell city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Dallas city | City | Approved, expires 2029-09-04 | Dallas (FEMA plan 109246) | 2024-09-05 | 2029-09-04 | 1,070 | ||
| DeSoto city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Duncanville city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Farmers Branch city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Ferris city | City | Approved, expires 2028-04-02 | Ellis County (FEMA plan 107257) | 2023-04-03 | 2028-04-02 | 550 | ||
| Glenn Heights city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Grand Prairie city | City | Approved, expires 2029-12-01 | Grand Prairie (FEMA plan 109673) | 2024-12-02 | 2029-12-01 | 1,158 | ||
| Grapevine city | City | Approved, expires 2030-12-22 | Tarrant County (FEMA plan 110401) | 2025-12-23 | 2030-12-22 | 1,544 | this jurisdiction approved 2026-02-11 | |
| Highland Park town | Town | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Hutchins city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Irving city | City | Approved, expires 2030-12-18 | Irving (FEMA plan 110790) | 2025-12-19 | 2030-12-18 | 1,540 | ||
| Lancaster city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Lewisville city | City | Approved, expires 2028-04-10 | Denton County (FEMA plan 107449) | 2023-04-11 | 2028-04-10 | 558 | ||
| Mesquite city | City | No approved plan on record | none | none | none | FEMA tracker shows a plan in review | ||
| Ovilla city | City | Approved, expires 2028-04-02 | Ellis County (FEMA plan 107257) | 2023-04-03 | 2028-04-02 | 550 | ||
| Richardson city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Rowlett city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Sachse city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Seagoville city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Sunnyvale town | Town | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| University Park city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Wilmer city | City | Approved, expires 2030-06-29 | Dallas County (FEMA plan 110535) | 2025-06-30 | 2030-06-29 | 1,368 | this jurisdiction approved 2025-09-18 | |
| Wylie city | City | Approved, expires 2027-06-14 | Collin County (FEMA plan 108155) | 2022-06-15 | 2027-06-14 | 257 | ||
| Grand Prairie Independent School District | School/School District | Plan 109673 approved 2024-12-02, pending adoption here; not yet eligible | Grand Prairie (FEMA plan 109673), pending adoption here | 2024-12-02 by FEMA; not yet adopted here | 2029-12-01 once adopted | FEMA tracker shows a plan approvable pending adoption | Not yet eligible: adopt the approved plan. | |
| Trinity River Authority | Water/Sewer Authority | Approved, expires 2031-07-22 | Trinity River Authority (FEMA plan 111457) | 2026-07-23 | 2031-07-22 | 1,756 |
Supports FEMA checklist item B1-a: hazard identification
Hazards NRI does not cover (local data needed)
- dam failure (incl. upstream dams)
- levee failure
- flash flood as its own subtype
- ice jams
- debris flows
- erosion (riverine and coastal)
- land subsidence and sinkholes
- expansive soils
The 18 National Risk Index hazards, ranked by expected annual loss (EAL)
Sources: 5, 6
| Rank by EAL | Hazard | NRI risk rating | EAL rating | EAL buildingsmodeled dollars per year | EAL agriculturemodeled dollars per year | Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage | EAL total (see note)modeled dollars per year | Storm Events records, 1996 to 2026-06-30count | Storm Events coverage note |
|---|---|---|---|---|---|---|---|---|---|
| 1 | Inland Flooding | Very High | Very High | $316,181,884 | $132,657 | $7,430,415 | $323,744,956 | 327 | |
| 2 | Heat Wave | Very High | Very High | $1,578 | $200 | $288,423,434 | $288,425,212 | 81 | |
| 3 | Hail | Very High | Very High | $127,435,390 | $952 | $93,405 | $127,529,748 | 528 | |
| 4 | Tornado | Very High | Very High | $85,906,013 | $744 | $28,853,263 | $114,760,019 | 43 | |
| 5 | Cold Wave | Very High | Very High | $274,537 | $28,279 | $98,089,308 | $98,392,123 | 15 | Includes 1 Frost/Freeze record (outside NRI's Cold Wave definition; counted in this table and in B1-d, not in the B1-e descriptor). |
| 6 | Earthquake | Relatively Moderate | Relatively Moderate | $4,117,863 | n/a | $1,283,019 | $5,400,882 | Storm Events does not record earthquakes. | |
| 7 | Strong Wind | Very High | Relatively High | $1,449,628 | $125 | $3,865,352 | $5,315,105 | 448 | Includes 8 High Wind and 6 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition). |
| 8 | Ice Storm | Very High | Very High | $2,520,414 | n/a | $2,152,857 | $4,673,271 | 6 | |
| 9 | Lightning | Very High | Relatively High | $455,404 | n/a | $2,103,928 | $2,559,333 | 42 | |
| 10 | Winter Weather | Very High | Very High | $234,548 | $185 | $1,083,401 | $1,318,134 | 50 | Includes 2 Sleet records (outside NRI's Winter Weather definition). |
| 11 | Hurricane | Relatively Low | Relatively Low | $628,884 | $6,780 | $40,779 | $676,444 | 0 | Declared 5 times; no Storm Events record of this type. |
| 12 | Wildfire | Relatively Low | Relatively Low | $289,123 | $59 | $59,603 | $348,784 | 3 | |
| 13 | Drought | Relatively Low | Relatively Low | n/a | $31,641 | n/a | $31,641 | 73 | |
| 14 | Landslide | Very Low | Very Low | $894 | n/a | $24 | $917 | 0 | No recorded events in Storm Events since 1996 (data through 2026-06-30). |
Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).
NRI risk rating combines expected annual loss with social vulnerability and community resilience; EAL rating rates expected annual loss alone. Both compare this county with all U.S. counties.
Local data needed: state and local landslide records (Storm Events records this hazard only in part).
Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: avalanche, coastal flooding, tsunami and volcanic activity. That is the evidence for leaving them out of the plan.
The state hazard mitigation plan also lists hazards for this county; FEMA asks the plan to explain any hazard it leaves out.
Supports FEMA checklist item B1-b: hazard location
Affects the whole county (national data give no location within it): Cold Wave, Drought, Hail, Heat Wave, Ice Storm, Lightning, Strong Wind and Winter Weather.
Inland Flooding: The FEMA Flood Insurance Rate Map (FIRM) is the required location source for flooding. See the FEMA Flood Map Service Center (https://msc.fema.gov) for this county.
Hazards that vary within the county: highest-rated census tracts
Source: 5
| Hazard | Highest-rated census tractsNRI risk rating, score 0 to 100 |
|---|---|
| Earthquake | tract 100.01 (Relatively Moderate, 80.2); tract 141.26 (Relatively Low, 77.2); tract 100.03 (Relatively Low, 74.4) |
| Hurricane | tract 141.26 (Relatively Low, 53.4); tract 169.03 (Relatively Low, 52.8); tract 100.01 (Very Low, 50.3) |
| Landslide | tract 165.21 (Relatively Low, 86.0); tract 165.22 (Relatively Low, 81.2); tract 169.03 (Very Low, 80.4) |
| Tornado | tract 141.26 (Very High, 99.9); tract 100.01 (Very High, 99.6); tract 100.03 (Very High, 99.5) |
| Wildfire | tract 169.03 (Relatively Moderate, 90.8); tract 166.16 (Relatively Moderate, 89.7); tract 166.23 (Relatively Moderate, 88.8) |
Up to 3 census tracts per hazard, highest National Risk Index rating first, then highest score; a tract number is the Census tract number (for example 100.01 is Census Tract 100.01). FEMA's Resilience Analysis and Planning Tool maps the National Risk Index for every tract: https://www.fema.gov/emergency-managers/practitioners/resilience-analysis-and-planning-tool
Supports FEMA checklist item B1-c: hazard extent
Extent: scale, observed range and worst recorded event per hazard
Sources: 6, 7
| Hazard | Scale | Recordscount and years | Observed range | Worst recorded event | Most damaging (when different) | How it applies to jurisdictions | Note |
|---|---|---|---|---|---|---|---|
| Cold/Wind Chill, Extreme Cold/Wind Chill | wind chill | 14 records, 1996 to 2026 (14 zone-level) | 1 day to 4 days (median 2 days); 13 with a recorded value | 4 consecutive days, 2026-01-24 to 2026-01-27, zone-level | Extreme Cold/Wind Chill, 2021-02-14, $6,300,000 property; crops not reported, reported for the zone (2021 dollars) | Countywide (zone-level records). | Wind chill: in event narratives only (local data needed). |
| Frost/Freeze (outside NRI's Cold Wave definition) | crop damage | 1 record, 2010 (1 zone-level) | No crop damage reported in 1 record. | Frost/Freeze, 2010-01-04, $40,000 property; $0 crops, reported for the zone (2010 dollars) | Countywide (zone-level records). | Temperature: in event narratives only (local data needed). | |
| Drought | U.S. Drought Monitor scale (D0 to D4) | 73 records, 1996 to 2024 (73 zone-level) | 8 days to 342 days (median 41 days); 24 with a recorded value | 342 days (about 11.2 months), 2005-06-01 to 2006-05-08, a run of 12 consecutive Storm Events drought records, zone-level | Drought, 2006-10-01, $500,000 property; $500,000 crops, reported for the zone (2006 dollars) | Countywide (zone-level records). | Storm Events enters a drought at D2 or worse east of the Rockies and D3 or worse from the Rockies west (NWS Instruction 10-1605); NRI drought counts D3 and D4 only. |
| Earthquake | Modified Mercalli (local data) | 0 | Storm Events does not record earthquakes; the USGS earthquake catalog is the source. | ||||
| Hail | hail size (inches) | 841 records, 1955 to 2026 | 0.53 in to 4.5 in (median 1 in); 841 with a recorded value | 4.5 in hail, 1986-04-12 | Hail, 2012-06-13, $900,000,000 property; $0 crops (2012 dollars) | Event records naming jurisdictions in the plan: Dallas city (63 records), Richardson city (42 records), Cedar Hill city (31 records), Coppell city (29 records), Duncanville city (25 records), Mesquite city (24 records), Irving city (22 records), Rowlett city (20 records), Grand Prairie city (19 records), Addison town (14 records); and 15 more jurisdictions (see the Excel file). | |
| Excessive Heat, Heat | heat index (in event narratives) | 81 records, 1996 to 2026 (81 zone-level) | 1 day to 85 days (median 3 days); 56 with a recorded value | July 2000 to September 2000 (3 monthly summary records), 15 direct deaths, zone-level | Countywide (zone-level records). | Heat index: in event narratives only (local data needed). | |
| Hurricane, Tropical Storm, Tropical Depression | Saffir-Simpson | 0 | Storm Events files every zone of a storm's episode under the storm's type; flooding from the storm is filed as Flood or Flash Flood records. | ||||
| Ice Storm | Sperry-Piltz ice scale (local data) | 6 records, 1998 to 2023 (6 zone-level) | Ice Storm, 2011-02-01, $500,000 property; $0 crops (2011 dollars); NWS zone TXZ119 | Countywide (zone-level records). | Ice thickness: in event narratives only (local data needed). | ||
| Flash Flood, Flood, Lakeshore Flood | damage and flood days (flood depth: FIRM) | 327 records, 1996 to 2026 (2 zone-level) | Flash Flood, 2022-08-22, $500,000,000 property; $0 crops (2022 dollars) | Event records naming jurisdictions in the plan: Dallas city (63 records), Highland Park town (16 records), Mesquite city (16 records), Sachse city (13 records), Irving city (12 records), Cedar Hill city (11 records), Richardson city (10 records), Rowlett city (10 records), Coppell city (9 records), Farmers Branch city (9 records); and 13 more jurisdictions (see the Excel file). Zone-level records (2) apply countywide. | Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage is often $0 or blank for floods, major ones included; FEMA Public Assistance by declaration (B1-d) shows which floods cost the most. | ||
| Debris Flow | none (count and damage only) | 0 | Physical measure: in event narratives only (local data needed). | ||||
| Lightning | annualized frequency (the measure FEMA's Local Mitigation Planning Handbook names) | 42 records, 1996 to 2025 | Lightning, 2020-07-02, $0 property; $0 crops (2020 dollars), 1 direct death | Lightning, 1999-05-02, $1,200,000 property; crops not reported (1999 dollars) | Event records naming jurisdictions in the plan: Dallas city (4 records), Grand Prairie city (4 records), Coppell city (3 records), Carrollton city (2 records), Farmers Branch city (2 records), Highland Park town (2 records), Hutchins city (2 records), Irving city (2 records), University Park city (2 records), Duncanville city (1 record); and 4 more jurisdictions (see the Excel file). | Storm Events lists lightning with damage or casualties; physical measure in event narratives only (local data needed). | |
| High Wind and Strong Wind (outside NRI's Strong Wind definition) | wind speed (kt and mph) | 14 records, 1996 to 2026 (14 zone-level) | 35 kt (40 mph) to 52 kt (60 mph) (median 45 kt (52 mph)); 13 with a recorded value | 52 kt (60 mph) measured gust, High Wind, 2025-03-04; NWS zone TXZ119 | High Wind, 2007-02-24, $225,000 property; $0 crops, reported for the zone (2007 dollars) | Countywide (zone-level records). | |
| Thunderstorm Wind | wind speed (kt and mph) | 708 records, 1955 to 2026 | 39 kt (45 mph) to 100 kt (115 mph) (median 55 kt (63 mph)); 501 with a recorded value | 100 kt (115 mph), measurement type not recorded, Thunderstorm Wind, 1996-06-14 | Thunderstorm Wind, 2019-06-09, $10,000,000 property; $0 crops (2019 dollars) | Event records naming jurisdictions in the plan: Dallas city (56 records), Richardson city (25 records), Mesquite city (20 records), Grand Prairie city (15 records), Highland Park town (15 records), Irving city (15 records), Coppell city (14 records), Addison town (13 records), Carrollton city (13 records), Rowlett city (13 records); and 14 more jurisdictions (see the Excel file). | |
| Tornado | Enhanced Fujita (Fujita before Feb 2007) | 109 records, 1952 to 2025 | F/EF0 to F/EF4 (median F/EF1); 105 with a recorded value | EF4 tornado, 2015-12-26, 9.21 mi within this county, 550 yd wide, $26,000,000 property; $0 crops (2015 dollars), 10 direct deaths, 468 direct injuries | Tornado, 2019-10-20, $1,550,000,000 property; $0 crops (2019 dollars) | Event records naming jurisdictions in the plan: Lancaster city (7 records), Dallas city (5 records), Cedar Hill city (3 records), Mesquite city (3 records), Carrollton city (2 records), DeSoto city (2 records), Farmers Branch city (2 records), Irving city (2 records), Rowlett city (2 records), Sachse city (2 records); and 10 more jurisdictions (see the Excel file). | Before 1996 a tornado is listed once, under the county where it began, with its whole path's rating and length; from 1996 on, each county lists its own segment. Length is not used to rank tornadoes (see Methods). |
| Wildfire | acres burned (local data) | 3 records, 2011 to 2016 (3 zone-level) | Wildfire, 2011-08-16, $300,000 property; $0 crops (2011 dollars); NWS zone TXZ119 | Countywide (zone-level records). | Acres burned: in event narratives only (local data needed). | ||
| Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet | none in data (snowfall: local data) | 50 records, 1996 to 2026 (50 zone-level) | Heavy Snow, 2010-02-11, $16,000,000 property; $0 crops (2010 dollars); NWS zone TXZ119 | Countywide (zone-level records). | Snow depth: in event narratives only (local data needed). |
Where a hazard names more than 10 jurisdictions, the table lists the 10 with the most records; every one is in the Excel file, sheet "B1-c Extent".
Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records whose zone no NWS zone-county file places in this county (mostly before 2020) are not counted here (the Methods page explains the zone matching).
Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.
A monthly summary record covers most or all of a month; it does not count days at wave conditions.
Supports FEMA checklist item B1-d: previous occurrences
Federal declarations for this county: 28 declarations covering 20 separate hazard incidents counted in this packet (declarations for the same incident count once; non-natural and evacuation-only declarations are not counted).
Federal disaster declarations for this county
Sources: 1, 2, 3
| Declared | Incident began | FEMA number | Type | Title | Mapped hazard | County Public Assistancefederal share obligated, nominal dollars | Flags | Notes |
|---|---|---|---|---|---|---|---|---|
| 2024-05-17 | 2024-04-26 | DR-4781-TX | Major disaster | Severe Storms, Straight-Line Winds, Tornadoes, and Flooding | Inland Flooding (primary); also designated: Strong Wind, Tornado | $20,395,627.17 | within last 5 years | |
| 2021-02-19 | 2021-02-11 | DR-4586-TX | Major disaster | Severe Winter Storms | Ice Storm | $2,720,604.82 | ||
| 2021-02-14 | 2021-02-11 | EM-3554-TX | Emergency | Severe Winter Storm | Ice Storm | no Public Assistance recorded | same incident as DR-4586 | |
| 2020-08-24 | 2020-08-23 | EM-3540-TX | Emergency | Tropical Storms Marco and Laura | Hurricane | $5,388.45 | ||
| 2020-03-25 | 2020-01-20 | DR-4485-TX | Major disaster | COVID-19 Pandemic | Non-natural, not counted | $161,542,613.34 | ||
| 2020-03-13 | 2020-01-20 | EM-3458-TX | Emergency | COVID-19 | Non-natural, not counted | no Public Assistance recorded | same incident as DR-4485 | |
| 2017-08-25 | 2017-08-23 | DR-4332-TX | Major disaster | Hurricane Harvey | Hurricane | $2,779,628.93 | ||
| 2016-02-09 | 2015-12-26 | DR-4255-TX | Major disaster | Severe Winter Storms, Tornadoes, Straight-Line Winds, and Flooding | Inland Flooding; Strong Wind; Tornado; Winter Weather | $5,543,309.15 | ||
| 2015-05-29 | 2015-05-04 | DR-4223-TX | Major disaster | Severe Storms, Tornadoes, Straight-Line Winds and Flooding | Inland Flooding; Strong Wind; Tornado | $6,632,148.38 | ||
| 2008-09-10 | 2008-09-07 | EM-3294-TX | Emergency | Hurricane Ike | Hurricane | $40,271.27 | ||
| 2008-08-29 | 2008-08-27 | EM-3290-TX | Emergency | Hurricane Gustav | Hurricane | $104,899.64 | ||
| 2008-03-14 | 2008-03-14 | EM-3284-TX | Emergency | Wildfires | Wildfire | no Public Assistance recorded | ||
| 2007-08-18 | 2007-08-17 | EM-3277-TX | Emergency | Hurricane Dean | Hurricane | no Public Assistance recorded | ||
| 2006-01-11 | 2005-11-27 | DR-1624-TX | Major disaster | Extreme Wildfire Threat | Wildfire | $1,268.07 | ||
| 2005-09-24 | 2005-09-23 | DR-1606-TX | Major disaster | Hurricane Rita | Hurricane: evacuation support (county designated for sheltering evacuees, no Individual Assistance), not a local hazard event; not counted | $33,828.13 | ||
| 2005-09-21 | 2005-09-20 | EM-3261-TX | Emergency | Hurricane Rita | Hurricane: evacuation support (county designated for sheltering evacuees, no Individual Assistance), not a local hazard event; not counted | $56,607.63 | same incident as DR-1606 | |
| 2005-09-02 | 2005-08-29 | EM-3216-TX | Emergency | Hurricane Katrina Evacuation | Hurricane: evacuation support, not a local hazard event; not counted | $49,419,933.96 | ||
| 2003-02-01 | 2003-02-01 | EM-3171-TX | Emergency | Loss of the Space Shuttle Columbia | Non-natural, not counted | $8,679.40 | ||
| 1999-09-01 | 1999-08-01 | EM-3142-TX | Emergency | Extreme Fire Hazards | Wildfire | no Public Assistance recorded | ||
| 1998-08-26 | 1998-08-22 | DR-1239-TX | Major disaster | Tropical Storm Charley | Hurricane; Inland Flooding: designated for Hazard Mitigation only (no Public or Individual Assistance for this county); not counted | PA not declared for this county | ||
| 1996-02-23 | 1996-02-23 | EM-3117-TX | Emergency | Extreme Fire Hazard | Wildfire | no Public Assistance recorded | ||
| 1994-04-29 | 1994-04-25 | DR-1026-TX | Major disaster | Severe Storms and Tornadoes | Tornado | PA not declared for this county | ||
| 1993-09-10 | 1993-08-30 | EM-3113-TX | Emergency | Extreme Fire Hazard | Drought (primary); also designated: Wildfire | no Public Assistance recorded | ||
| 1991-12-26 | 1991-12-20 | DR-930-TX | Major disaster | Severe Thunderstorms | Inland Flooding | PA not declared for this county | ||
| 1990-05-02 | 1990-04-15 | DR-863-TX | Major disaster | Severe Storms, Tornadoes & Flooding | Inland Flooding; Tornado | no Public Assistance recorded | ||
| 1989-05-19 | 1989-05-04 | DR-828-TX | Major disaster | Severe Storms, Tornadoes & Flooding | Inland Flooding; Tornado | no Public Assistance recorded | ||
| 1979-07-28 | 1979-07-28 | DR-595-TX | Major disaster | Storms & Flash Floods | Inland Flooding | no Public Assistance recorded | ||
| 1966-05-12 | 1966-05-12 | DR-218-TX | Major disaster | Severe Storms & Flooding | Inland Flooding | no Public Assistance recorded |
School districts and special districts in this county: $405,918.61 (included in the county total above). Public Assistance matched by applicant name to the school districts and special districts FEMA lists as plan participants in this county. They have no row of their own in the jurisdiction table, so their total is listed here. These dollars are already included in the county PA column of the declarations table (the FEMA record places each applicant in this county), so this line is not added to it.
County Public Assistance: applicants the FEMA record places in this county, including any state agencies FEMA files there; statewide rows are listed on the state page; federal share obligated, nominal dollars.
Statewide declarations
Source: 2
| Declared | Incident began | FEMA number | Type | Title | Mapped hazard |
|---|---|---|---|---|---|
| 1998-06-23 | 1998-06-04 | EM-3127-TX | Emergency | Fire | Wildfire |
| 1963-09-24 | 1963-09-24 | DR-159-TX | Major disaster | Hurricane Cindy | Hurricane (primary); also designated: Inland Flooding |
| 1961-09-16 | 1961-09-16 | DR-118-TX | Major disaster | Hurricane Carla | Hurricane (primary); also designated: Inland Flooding |
| 1960-07-15 | 1960-07-15 | DR-103-TX | Major disaster | Heavy Rains, Hail, Floods & Tornadoes | Hail; Inland Flooding; Tornado |
| 1959-07-08 | 1959-07-08 | DR-93-TX | Major disaster | Floods | Inland Flooding |
| 1958-06-06 | 1958-06-06 | DR-85-TX | Major disaster | Tornadoes, Rain, Hail & Floods | Tornado (primary); also designated: Hail, Inland Flooding |
| 1957-04-29 | 1957-04-29 | DR-72-TX | Major disaster | Hurricane, Rain, Wind, Hail & Floods | Hurricane (primary); also designated: Hail, Inland Flooding |
| 1954-07-01 | 1954-07-01 | DR-18-TX | Major disaster | Flood | Inland Flooding |
| 1953-06-19 | 1953-06-19 | DR-9-TX | Major disaster | Flood | Inland Flooding |
| 1953-05-15 | 1953-05-15 | DR-2-TX | Major disaster | Tornado & Heavy Rainfall | Tornado |
FEMA recorded these with designated area Statewide and no county, so they are listed on every county page in the state and not counted with county rows. Local data needed: whether each one affected this county.
91 Fire Management declarations (1988-03-12 to 2009-04-10) FEMA filed as Statewide with no county; each names one local fire. Listed on the state page.
Public Assistance filed under this county for declarations that do not list it: 3 rows, $979,161.38
Sources: 2, 3
| FEMA number | Declared | Title | Applicant | PA obligatedfederal share obligated, nominal dollars |
|---|---|---|---|---|
| DR-1791-TX | 2008-09-13 | Hurricane Ike | CHRISTUS Health - Corporate Headquarters | $943,340.69 |
| DR-1791-TX | 2008-09-13 | Hurricane Ike | Buckner Children and Family Services Inc. | $22,088.19 |
| DR-1323-TX | 2000-04-07 | Severe Storms, Tornadoes and Flooding | Grand Prairie, City of | $13,732.50 |
FEMA's Public Assistance summaries file these applicants under this county, but FEMA's declaration rows for these disasters do not designate it (an electric cooperative or district serving several counties, for example). Not in any declaration row above and not counted.
Public Assistance not placed in any Texas county: 1 row, $902,084.65; listed on the Texas state page.
Source: 3
Previous occurrences by hazard, with explicit no-event rows
Sources: 2, 6, 7
| Hazard | Storm Events records, all years on file(years in the Period column) | Since plan approvalrecords | In the 12 months before plan approvalrecords | Last 5 yearsrecords | Declared incidents, all yearsseparate disasters | Declared since approvalseparate disasters | Period | Statement |
|---|---|---|---|---|---|---|---|---|
| Cold Wave | 15 | 1 | 3 | 5 | 0 | 0 | 1996 to 2026-06-30 | Includes 1 Frost/Freeze record. |
| Drought | 73 | 0 | 2 | 13 | 1 | 0 | 1996 to 2026-06-30 | |
| Earthquake | 0 | 0 | 0 | 0 | 0 | 0 | Storm Events does not record earthquakes; the USGS earthquake catalog is the source. | |
| Hail | 841 | 28 | 16 | 137 | 0 | 0 | 1955 to 2026-06-30 | |
| Heat Wave | 81 | 5 | 8 | 34 | 0 | 0 | 1996 to 2026-06-30 | |
| Hurricane | 0 | 0 | 0 | 0 | 5 | 0 | 1996 to 2026-06-30 | No Storm Events records of this type; 5 federal declared incidents (see declarations table) |
| Ice Storm | 6 | 0 | 0 | 1 | 1 | 0 | 1996 to 2026-06-30 | |
| Inland Flooding | 327 | 39 | 34 | 103 | 8 | 0 | 1996 to 2026-06-30 | |
| Landslide | 0 | 0 | 0 | 0 | 0 | 0 | 1996 to 2026-06-30 | No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events |
| Lightning | 42 | 5 | 2 | 7 | 0 | 0 | 1996 to 2026-06-30 | |
| Strong Wind | 722 | 11 | 16 | 72 | 3 | 0 | 1955 to 2026-06-30 | Includes 8 High Wind and 6 Strong Wind records. |
| Tornado | 109 | 0 | 1 | 3 | 6 | 0 | 1950 to 2026-06-30 | |
| Wildfire | 3 | 0 | 0 | 0 | 5 | 0 | 1996 to 2026-06-30 | |
| Winter Weather | 50 | 1 | 1 | 5 | 1 | 0 | 1996 to 2026-06-30 | Includes 2 Sleet records. |
Notable Storm Events records
Sources: 1, 6, 7
| Date | Event type | Magnitude or extent | Damagenominal dollars | Deaths, injuriesdirect only | Location | Flags | Why listed |
|---|---|---|---|---|---|---|---|
| 2026-01-24 | Extreme Cold/Wind Chill | $0 property; $0 crops, reported for the zone (2026 dollars) | 0, 0 | NWS zone TXZ119 (DALLAS), zone-level | new since last plan; within last 5 years | B1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill | |
| 2025-03-04 | High Wind | 52 kt (60 mph) measured gust | $0 property; $0 crops, reported for the zone (2025 dollars) | 0, 0 | NWS zone TXZ119 (DALLAS), zone-level | in the 12 months before plan approval; within last 5 years | B1-c worst recorded: High Wind and Strong Wind |
| 2022-08-22 | Flash Flood | $500,000,000 property; $0 crops (2022 dollars) | 0, 0 | BALCH SPGS | within last 5 years | B1-c worst recorded: Flash Flood, Flood, Lakeshore Flood | |
| 2020-07-02 | Lightning | $0 property; $0 crops (2020 dollars) | 1, 0 | EAGLE FORD | B1-c worst recorded: Lightning | ||
| 2015-12-26 | Tornado | EF4, 9.21 mi within this county, 550 yd wide | $26,000,000 property; $0 crops (2015 dollars) | 10, 468 | NEW HOPE to ROWLETT | deaths or injuries recorded | |
| 2011-02-01 | Ice Storm | $500,000 property; $0 crops, reported for the zone (2011 dollars) | 0, 0 | NWS zone TXZ119 (DALLAS), zone-level | B1-c worst recorded: Ice Storm | ||
| 2010-02-11 | Heavy Snow | $16,000,000 property; $0 crops, reported for the zone (2010 dollars) | 0, 0 | NWS zone TXZ119 (DALLAS), zone-level | B1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet | ||
| 2000-07-01 | Heat | damage not reported | 8, 0 | NWS zone TXZ119 (DALLAS), zone-level | B1-c worst recorded: Excessive Heat, Heat | ||
| 1998-07-01 | Heat | damage not reported | 23, 0 | NWS zone TXZ119 (DALLAS), zone-level | deaths or injuries recorded | ||
| 1996-06-14 | Thunderstorm Wind | 100 kt (115 mph), measurement type not recorded | damage not reported | 0, 0 | (ADS)ADDISON ARPT DA | B1-c worst recorded: Thunderstorm Wind | |
| 1986-04-12 | Hail | 4.5 in | damage not recorded (pre-1996 record) | 0, 0 | location not recorded | B1-c worst recorded: Hail | |
| 1957-04-02 | Tornado | F3, 17.2 mi path length (whole path, pre-1996), 100 yd wide | $2,500,000 property; crops not recorded (1957 dollars) | 10, 200 | location not recorded | deaths or injuries recorded |
The full list is in the Excel file, sheet "B1-d Storm Events history" (2,269 rows).
Location is the place NOAA recorded, as written in its data; it need not be a jurisdiction in this plan.
Local data needed: state-declared emergencies, from your state emergency management agency (federal data do not include them).
Tribal and special-area declarations in this state are listed on the state page.
Supports FEMA checklist item B1-e: probability of future events
Probability: FEMA annualized frequency and descriptor per hazard
Sources: 5, 6
| Hazard | FEMA annualized frequency (modeled)unit per row | Unit | In plain terms | Descriptor | Descriptor basis | NRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional) | NRI period | Location | Note |
|---|---|---|---|---|---|---|---|---|---|
| Cold Wave | 0.947 | event-days per year | about 0.947 days per year | Likely (from Storm Events: 10 of 30 years) | event-days in 10 of 30 years, 1996 to 2025 (33.3%) | 18 | 2005-11-12 to 2024-11-12 (19 years) | countywide | |
| Drought | 30.1 | event-days per year | about 30.1 days per year | Likely (from Storm Events: 17 of 30 years) | event-days in 17 of 30 years, 1996 to 2025 (56.7%) | 1,449 | 2000 to 2025 (25.25 years; D3 and D4 only) | countywide | |
| Earthquake | 0.000925 | annual probability at a location | chance a given location in the county has at least minor-damage shaking in a year: 0.0925% | not shown | modeled | see B1-f | No descriptor (Storm Events does not record earthquakes). | ||
| Hail | 8.92 | events per year | about 8.92 per year | Highly likely | FEMA annualized frequency (modeled) | 338.9 (modeled) | 1986 to 2023 (38 years) | countywide | |
| Heat Wave | 19.1 | event-days per year | about 19.1 days per year | Likely (from Storm Events: 22 of 30 years) | event-days in 22 of 30 years, 1996 to 2025 (73.3%) | 314 | 2005-11-12 to 2024-11-12 (19 years) | countywide | |
| Hurricane | 0.0115 | events per year | about 1 in 87 years | Possible | FEMA annualized frequency (modeled) | 2 | 1851 to 2024 (Atlantic) | see B1-f | NRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d. |
| Ice Storm | 1.23 | event-days per year | about 1.23 days per year | Likely (from Storm Events: 6 of 30 years) | event-days in 6 of 30 years, 1996 to 2025 (20%) | 83 | 1946-12-31 to 2014-02-12 (67 years) | countywide | |
| Inland Flooding | 4.61 | event-days per year | about 4.61 days per year | Highly likely (from Storm Events: 28 of 30 years) | event-days in 28 of 30 years, 1996 to 2025 (93.3%) | 129 | 1996 to 2023 (28 years) | see B1-f | |
| Landslide | 0.17 | events per year (modeled) | about 1 in 6 years | Likely | FEMA annualized frequency (modeled) | not shown | modeled | see B1-f | |
| Lightning | 56.2 | days per year with a strike | about 56.2 days per year | Highly likely | FEMA annualized frequency (modeled) | not shown | 1995 to 2023 (29 years; CONUS) | countywide | |
| Strong Wind | 4.36 | events per year | about 4.36 per year | Highly likely | FEMA annualized frequency (modeled) | 166 | 1986 to 2023 (38 years) | countywide | |
| Tornado | 0.928 | events per year | about 0.93 per year | Likely | FEMA annualized frequency (modeled) | not shown | 1950 to 2023 (EF2+); 1986 to 2023 (EF0-1) | see B1-f | |
| Wildfire | 0.000489 | annual probability at a location | chance a given location in the county burns in a year: 0.0489% | Possible (from Storm Events: 2 of 30 years) | Storm Events records in 2 of 30 years, 1996 to 2025 (6.67%) | not shown | modeled | see B1-f | Descriptor from Storm Events, not NRI. |
| Winter Weather | 4.05 | event-days per year | about 4.05 days per year | Likely (from Storm Events: 24 of 30 years) | event-days in 24 of 30 years, 1996 to 2025 (80%) | 77 | 2005-11-12 to 2024-11-12 (19 years) | countywide |
FEMA annualized frequency (modeled) is the National Risk Index v1.20 (December 2025) estimate of how often a hazard affects this county in a year; it is not recorded events divided by years, and its unit differs by hazard (events, event-days, or days with a lightning strike per year). For earthquake, wildfire, coastal flooding and tsunami the value is the chance (or number of events) at a location in the county, not across the county, so no "1 in N years" is given and the descriptor comes from Storm Events where it has a record (none for earthquake). The Methods page gives each hazard's method, from FEMA's National Risk Index Technical Documentation v1.20.
Where NRI gives event-days, the descriptor comes from the share of years with a Storm Events record; NRI's source records more events, so the two differ.
Descriptor scale used in this packet (defined per unit)
Sources: 5, 6
| Unit | Descriptor | Definition |
|---|---|---|
| events per year | Highly likely | 1 or more per year |
| events per year | Likely | about once in 1 to 10 years |
| events per year | Possible | about once in 10 to 100 years |
| events per year | Unlikely | less than once in 100 years |
| annual probability | Likely | 10% to under 100% chance in a given year |
| annual probability | Possible | 1% to under 10% chance in a given year |
| annual probability | Unlikely | under 1% chance in a given year |
| event-days (share of years) | Highly likely | event-days recorded in 90% or more of years |
| event-days (share of years) | Likely | event-days recorded in 10% to under 90% of years |
| event-days (share of years) | Possible | event-days recorded in some years but under 10% of years |
| lightning strike-days | Highly likely | cloud-to-ground strikes on 1 or more days per year |
Intensity bands: historical frequency (Storm Events)
Source: 6
| Hazard | Band | Years | Eventscounty-coded records | Years in period | Events per yearevents / years |
|---|---|---|---|---|---|
| Hail | 1.00-1.99 in | 1996 to 2025 | 304 | 30 | 10.1 |
| Hail | 2.00 in+ | 1996 to 2025 | 64 | 30 | 2.13 |
| Thunderstorm Wind (counted as NRI Strong Wind) | 50-64 kt | 1996 to 2025 | 317 | 30 | 10.6 |
| Thunderstorm Wind (counted as NRI Strong Wind) | 65 kt+ | 1996 to 2025 | 42 | 30 | 1.4 |
| Thunderstorm Wind (counted as NRI Strong Wind) | unmeasured or below 50 kt | 1996 to 2025 | 67 | 30 | 2.23 |
| Tornado | EF0-1 | 1996 to 2025 | 35 | 30 | 1.17 |
| Tornado | EF2-3 | 1996 to 2025 | 7 | 30 | 0.233 |
| Tornado | EF4-5 | 1996 to 2025 | 1 | 30 | 0.0333 |
| Tornado | unrated (EFU) | 1996 to 2025 | 0 | 30 | 0 |
The bands show how often events of each severity were recorded in this county, to profile how severe events have been (FEMA's probability item asks for the range of intensities).
Hail smaller than 1 inch is not counted: on 2010-01-05 the National Weather Service raised its severe-hail threshold from 3/4 inch to 1 inch, so smaller reports became less common after 2009 (NWS Service Change Notice 09-52). NRI hail frequency uses a 0.75 inch threshold.
Optional: future conditions. Not a required item in the 2025 FEMA Local Mitigation Planning Policy Guide; some states ask for it. The federal Climate Mapping for Resilience and Adaptation (CMRA) site gives county exposure to future climate conditions (https://resilience.climate.gov/).
Supports FEMA checklist item B1-f: hazards that vary across jurisdictions
Range of census tract risk within the county
Source: 5
| Hazard | Tractsrated of all | NRI risk score, 0 to 100 | Tracts by rating | ||
|---|---|---|---|---|---|
| Min | Median | Max | |||
| Cold Wave | 645 of 645 | 16.2 | 77.4 | 96.3 | Very High 1, Relatively High 319, Relatively Moderate 320, Relatively Low 3, Very Low 2 |
| Drought | 45 of 645 | 67.0 | 73.2 | 91.0 | Relatively Low 5, Very Low 40, No Rating 600 |
| Earthquake | 645 of 645 | 4.4 | 19.6 | 80.2 | Relatively Moderate 1, Relatively Low 48, Very Low 596 |
| Hail | 645 of 645 | 76.5 | 95.2 | 99.9 | Very High 84, Relatively High 501, Relatively Moderate 60 |
| Heat Wave | 645 of 645 | 2.0 | 96.5 | 99.8 | Very High 321, Relatively High 319, Relatively Moderate 3, Very Low 2 |
| Hurricane | 645 of 645 | 22.4 | 33.6 | 53.4 | Relatively Low 2, Very Low 643 |
| Ice Storm | 645 of 645 | 20.7 | 60.2 | 94.5 | Relatively High 3, Relatively Moderate 146, Relatively Low 485, Very Low 11 |
| Inland Flooding | 645 of 645 | 0.8 | 33.6 | 99.7 | Very High 7, Relatively High 50, Relatively Moderate 154, Relatively Low 283, Very Low 151 |
| Landslide | 613 of 645 | 8.6 | 23.9 | 86.0 | Relatively Low 2, Very Low 611, No Rating 32 |
| Lightning | 645 of 645 | 1.8 | 23.4 | 63.4 | Relatively Moderate 4, Relatively Low 408, Very Low 233 |
| Strong Wind | 645 of 645 | 11.9 | 31.9 | 76.8 | Relatively Moderate 22, Relatively Low 587, Very Low 36 |
| Tornado | 645 of 645 | 38.1 | 69.0 | 99.9 | Very High 27, Relatively High 195, Relatively Moderate 377, Relatively Low 46 |
| Wildfire | 497 of 645 | 18.4 | 33.8 | 90.8 | Relatively Moderate 4, Relatively Low 53, Very Low 440, No Rating 148 |
| Winter Weather | 645 of 645 | 19.3 | 45.1 | 80.1 | Relatively High 1, Relatively Moderate 255, Relatively Low 389 |
Drought: Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range mostly reflects where crop and livestock value is.
Rated tracts only: No Rating (score 0.0), Not Applicable and Insufficient Data tracts are counted but not used for the minimum, median and maximum.
The score ranks a tract against all U.S. tracts (100 = highest). The rating is FEMA's category for the tract's risk value, computed differently, so the two can disagree.
Frequency data for cold wave, drought, hail, heat wave, ice storm, lightning, strong wind and winter weather are county-wide or coarse (49 km grid or NWS zone), the same for every jurisdiction; the tract range mostly reflects where buildings and people are (crop and livestock value where a line above names agriculture).
Each jurisdiction (starting figures from federal data)
Sources: 1, 3, 4, 6
| Jurisdiction | Type | Plan status | Repetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definition | Public Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollars | Event records naming this placeall years; since its plan | Notes |
|---|---|---|---|---|---|---|
| Dallas County | County | Approved, expires 2030-06-29 | FMA RL 0, SRL 1; any 3 | $36,416,657.87 | 0 total; 0 since its plan | Includes $36,226,368.88 for declarations not counted as hazard incidents (DR-4485-TX, EM-3216-TX). |
| Addison town | Town | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 0 | $229,113.53 | 28 total; 1 since its plan | Includes $51,321.29 for declarations not counted as hazard incidents (EM-3216-TX). |
| Balch Springs city | City | Approved, expires 2030-06-29 | FMA RL 11, SRL 6; any 22 | $36,118.27 | 19 total; 3 since its plan | |
| Carrollton city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 2 | $1,212,696.42 | 28 total; 4 since its plan | Includes $40,534.89 for declarations not counted as hazard incidents (EM-3216-TX). |
| Cedar Hill city | City | Approved, expires 2030-06-29 | FMA RL 1, SRL 0; any 4 | $959,837.85 | 51 total; 2 since its plan | Includes $754,261.05 for declarations not counted as hazard incidents (EM-3216-TX). |
| Cockrell Hill city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 0 | no Public Assistance recorded | 12 total; 1 since its plan | |
| Combine city | City | Approved, expires 2027-03-10 | FMA RL 0, SRL 0; any 0 | no Public Assistance recorded | 1 total; 0 since its plan | |
| Coppell city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 1 | $244,749.41 | 56 total; 0 since its plan | Includes $152,238.91 for declarations not counted as hazard incidents (EM-3216-TX). |
| Dallas city | City | Approved, expires 2029-09-04 | FMA RL 9, SRL 20; any 97 | $18,684,089.81 | 191 total; 4 since its plan | Whole community, including the part in Collin County; in-county portion (county table): FMA RL 9, FMA SRL 19, NFIP RL 88, NFIP SRL 17, any category 91. Includes $10,109,764.12 for declarations not counted as hazard incidents (DR-4485-TX, EM-3216-TX). |
| DeSoto city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 2; any 12 | $1,714,193.30 | 23 total; 2 since its plan | Includes $728,870.32 for declarations not counted as hazard incidents (EM-3216-TX). |
| Duncanville city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 6 | $787,793.06 | 44 total; 4 since its plan | Includes $742,996.12 for declarations not counted as hazard incidents (EM-3216-TX). |
| Farmers Branch city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 4; any 9 | $77,984.29 | 36 total; 4 since its plan | |
| Ferris city | City | Approved, expires 2028-04-02 | FMA RL 0, SRL 0; any 0 | no Public Assistance recorded | 1 total; 0 since its plan | |
| Glenn Heights city | City | Approved, expires 2030-06-29 | FMA RL 1, SRL 0; any 1 | $330,908.29 | 0 total; 0 since its plan | Whole community, including the part in Ellis County; none of its repeat-flood properties are in this county. Includes $185,565.67 for declarations not counted as hazard incidents (DR-4485-TX, EM-3216-TX). |
| Grand Prairie city | City | Approved, expires 2029-12-01 | FMA RL 1, SRL 8; any 12 | $8,125,578.11 | 48 total; 0 since its plan | Whole community, including the part in Tarrant County; in-county portion (county table): FMA RL 1, FMA SRL 5, NFIP RL 3, NFIP SRL 0, any category 9. Includes $6,913,748.53 for declarations not counted as hazard incidents (DR-4485-TX, EM-3216-TX). |
| Grapevine city | City | Approved, expires 2030-12-22 | FMA RL 0, SRL 0; any 10 | no Public Assistance recorded | 2 total; 0 since its plan | Whole community, including the part in Tarrant County; none of its repeat-flood properties are in this county. |
| Highland Park town | Town | Approved, expires 2030-06-29 | FMA RL 0, SRL 1; any 2 | $93,958.11 | 48 total; 0 since its plan | |
| Hutchins city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 0 | no Public Assistance recorded | 13 total; 0 since its plan | |
| Irving city | City | Approved, expires 2030-12-18 | FMA RL 0, SRL 0; any 12 | $3,974,568.88 | 53 total; 2 since its plan | Includes $378,176.07 for declarations not counted as hazard incidents (EM-3216-TX). |
| Lancaster city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 8; any 15 | $78,370.45 | 30 total; 0 since its plan | Includes $56,597.99 for declarations not counted as hazard incidents (DR-4485-TX). |
| Lewisville city | City | Approved, expires 2028-04-10 | FMA RL 0, SRL 2; any 7 | no Public Assistance recorded | 0 total; 0 since its plan | Whole community, including the part in Denton County; none of its repeat-flood properties are in this county. |
| Mesquite city | City | No approved plan on record | FMA RL 0, SRL 6; any 13 | $1,231,582.38 | 64 total; no approved plan | Includes $265,834.55 for declarations not counted as hazard incidents (EM-3171-TX, EM-3216-TX). |
| Ovilla city | City | Approved, expires 2028-04-02 | FMA RL 0, SRL 0; any 0 | no Public Assistance recorded | 1 total; 0 since its plan | |
| Richardson city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 0 | $3,121,674.22 | 79 total; 7 since its plan | Includes $254,376.85 for declarations not counted as hazard incidents (EM-3216-TX). |
| Rowlett city | City | Approved, expires 2030-06-29 | FMA RL 1, SRL 0; any 2 | $2,384,903.03 | 45 total; 6 since its plan | Includes $30,487.84 for declarations not counted as hazard incidents (EM-3216-TX). |
| Sachse city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 1 | $343,080.40 | 37 total; 1 since its plan | Includes $20,534.50 for declarations not counted as hazard incidents (DR-4485-TX). |
| Seagoville city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 0 | $73,404.77 | 24 total; 0 since its plan | |
| Sunnyvale town | Town | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 0 | $268,775 | 5 total; 1 since its plan | |
| University Park city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 0 | $266,885 | 22 total; 1 since its plan | |
| Wilmer city | City | Approved, expires 2030-06-29 | FMA RL 0, SRL 0; any 0 | no Public Assistance recorded | 8 total; 0 since its plan | |
| Wylie city | City | Approved, expires 2027-06-14 | FMA RL 0, SRL 0; any 0 | no Public Assistance recorded | 0 total; 0 since its plan |
Repetitive-loss counts are for whole NFIP communities, which can extend beyond this county (see the note in B2-c).
School districts and special districts get a plan clock row only.
County Public Assistance in B1-d also includes applicants filed under the county that are not jurisdictions in this plan (for example state agencies, special districts and nonprofits), so the jurisdiction rows add up to less.
Supports FEMA checklist items B2-a and B2-b: vulnerability and potential impacts
Local data needed
The table below gives county-level starting figures; the plan describes impacts for each jurisdiction and its own assets.
- Critical facilities and lifelines per hazard
- A problem statement per jurisdiction per hazard
- Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
- Future assets
- Texas A&M Forest Service TxWRAP for wildfire risk; Texas State Hazard Mitigation Plan hazard list for B1-a exclusions.
County-level starter: exposure, expected annual loss and damage since the plan
Sources: 1, 2, 3, 5, 6, 7
| Hazard | Building exposuremodeled dollars | Agriculture exposuremodeled dollars | Population exposedpeople | EAL buildingsmodeled dollars per year | EAL agriculturemodeled dollars per year | Cost of expected deaths and injuriesFEMA's dollar value per year, not property damage | EAL as % of exposurebuildings; agriculture where noted | Storm Events damage since 2025-06-30county-coded records, property plus crops, nominal dollars | Zone-level damage since planproperty plus crops, reported for the zone | Public Assistance since plannominal dollars; see note | Note |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Cold Wave | $436,067,741,565 | $38,351,466 | 2,607,214 | $274,537 | $28,279 | $98,089,308 | under 0.0001% | $0 | |||
| Drought | n/a | $24,799,651 | n/a | n/a | $31,641 | n/a | 0.128% (agriculture) | NRI has no building exposure for this hazard; agriculture shown | |||
| Earthquake | $765,035,451,073 | n/a | 2,613,539 | $4,117,863 | n/a | $1,283,019 | 0.000538% | ||||
| Hail | $436,068,129,049 | $38,351,466 | 2,607,218 | $127,435,390 | $952 | $93,405 | 0.0292% | $136,000 | |||
| Heat Wave | $436,067,741,565 | $38,351,466 | 2,607,214 | $1,578 | $200 | $288,423,434 | under 0.0001% | $0 | |||
| Hurricane | $434,375,589,670 | $38,351,466 | 2,597,644 | $628,884 | $6,780 | $40,779 | 0.000145% | ||||
| Ice Storm | $436,034,947,516 | n/a | 2,606,792 | $2,520,414 | n/a | $2,152,857 | 0.000578% | ||||
| Inland Flooding | $435,788,714,820 | $13,466,329 | 50,672 | $316,181,884 | $132,657 | $7,430,415 | n/a (see note) | $1,267,000 | NRI counts the full building value of any census block with some flood loss; this is not the value of buildings in the floodplain. Use local FIRM overlays for B2-a/B2-b. | ||
| Landslide | $2,092,335,683 | n/a | 11,010 | $894 | n/a | $24 | under 0.0001% | ||||
| Lightning | $436,068,129,049 | n/a | 2,607,218 | $455,404 | n/a | $2,103,928 | 0.000104% | $1,000,000 | |||
| Strong Wind | $436,068,129,049 | $38,351,466 | 2,607,218 | $1,449,628 | $125 | $3,865,352 | 0.000332% | $66,000 | $0 | ||
| Tornado | $436,068,129,049 | $38,351,466 | 2,607,218 | $85,906,013 | $744 | $28,853,263 | 0.0197% | ||||
| Wildfire | $20,195,609,673 | $9,253,243 | 161,013 | $289,123 | $59 | $59,603 | 0.00143% | ||||
| Winter Weather | $436,067,741,565 | $38,351,466 | 2,607,214 | $234,548 | $185 | $1,083,401 | under 0.0001% | $0 |
Totals since 2025-06-30 (Storm Events through 2026-06-30): 82 county-coded records, 82 with a damage value recorded (including $0), $2,469,000; 8 zone-level records, 8 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: no counted declaration since the plan.
FEMA does not split Public Assistance by hazard. A declaration mapped to several hazards is listed under each of them with its full amount, so the per-hazard column does not add up to the total; the unit total counts each declaration once.
NRI computes earthquake exposure on its own basis, so it exceeds the county building value in B2-a.
Supports FEMA checklist item B2-a: vulnerability (county context)
County context
Source: 5
| Measure | Value |
|---|---|
| Population | 2,607,218 |
| Building value (total, not at risk) | $436,068,129,049 |
| Agriculture value (total, not at risk) | $38,351,466 |
| NRI risk rating (all hazards) | Very High |
| Expected annual loss, buildings and agriculture, all hazards | $539,697,782 |
| Expected annual loss, population equivalence, all hazards (NRI values each statistical life at $13.7M; a modeled value of expected deaths and injuries, not property damage) | $433,478,787 |
| Social vulnerability rating | Relatively Moderate |
| Community resilience rating | Very Low |
| NRI version | December 2025 |
FEMA's all-hazard expected annual loss adds buildings, agriculture and population equivalence; this table gives the property part and the population-equivalence part as separate rows.
Social vulnerability: higher means people are more likely to be harmed and slower to recover. Community resilience: lower means the community is less able to recover. High social vulnerability and low resilience both raise the NRI risk rating.
Supports FEMA checklist item B2-c: repetitive loss properties
Repetitive loss in this county, both definitions
Sources: 1, 4
| Definition | Properties | Severe repetitive loss | Properties |
|---|---|---|---|
| Repetitive loss, FMA definition (44 CFR 77.2) | 31 | Severe repetitive loss, FMA definition (44 CFR 77.2) | 67 |
| Repetitive loss, NFIP insurance definition | 229 | Severe repetitive loss, NFIP insurance definition | 46 |
The state NFIP coordinator's list, the source FEMA's Handbook names, often uses the NFIP insurance definition (second row).
Repeat-flood properties: county and state-level rows
Sources: 1, 4
| Scope | RL, FMAproperties | SRL, FMAproperties | RL, NFIPproperties | SRL, NFIPproperties | Any categoryproperties | Mitigatedproperties | Currently insuredproperties |
|---|---|---|---|---|---|---|---|
| County total | 31 | 67 | 229 | 46 | 254 | 10 | 96 |
| of which: Dallas County (unincorporated area) | 0 | 1 | 3 | 1 | 3 | 0 | 0 |
| of which: Balch Springs city | 11 | 6 | 21 | 5 | 22 | 0 | 7 |
| of which: Carrollton city | 0 | 0 | 2 | 0 | 2 | 0 | 0 |
| of which: Cedar Hill city | 1 | 0 | 4 | 0 | 4 | 0 | 4 |
| of which: Coppell city | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| of which: Dallas city | 9 | 19 | 88 | 17 | 91 | 1 | 44 |
| of which: Desoto city | 0 | 2 | 10 | 0 | 12 | 0 | 2 |
| of which: Duncanville city | 0 | 0 | 6 | 0 | 6 | 0 | 4 |
| of which: Farmers Branch city | 0 | 4 | 8 | 3 | 9 | 0 | 5 |
| of which: Highland Park town | 0 | 1 | 1 | 0 | 2 | 1 | 0 |
| of which: Irving city | 0 | 0 | 12 | 0 | 12 | 0 | 2 |
| of which: Lancaster city | 0 | 8 | 10 | 3 | 15 | 2 | 1 |
| of which: Rowlett city | 1 | 0 | 1 | 0 | 2 | 0 | 1 |
| of which: Sachse city | 0 | 0 | 1 | 0 | 1 | 0 | 1 |
| of which: Garland city (plan jurisdiction listed on the Collin County page) | 8 | 15 | 48 | 13 | 50 | 2 | 21 |
| of which: Grand Prairie city | 1 | 5 | 3 | 0 | 9 | 2 | 2 |
| of which: Mesquite city | 0 | 6 | 10 | 4 | 13 | 2 | 1 |
| Statewide, no county in FEMA's file | 3 | 8 | 12 | 7 | 13 | 1 | 9 |
50 of the county's repeat-flood properties belong to NFIP communities whose plan jurisdiction is not listed on this page (the community rows above name the page that lists it).
The statewide row counts properties FEMA's file gives with no county in this state; they are listed for reference and are not in this county's counts.
Repeat-flood properties by jurisdiction in the plan (NFIP community)
Sources: 1, 4
| Jurisdiction | NFIP community ID | RL, FMAproperties | SRL, FMAproperties | RL, NFIPproperties | SRL, NFIPproperties | Any categoryproperties | Mitigatedproperties | Currently insuredproperties | Note |
|---|---|---|---|---|---|---|---|---|---|
| Dallas County | 480165 | 0 | 1 | 3 | 1 | 3 | 0 | 0 | |
| Addison town | 481089 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Balch Springs city | 480166 | 11 | 6 | 21 | 5 | 22 | 0 | 7 | |
| Carrollton city | 480167 | 0 | 0 | 2 | 0 | 2 | 0 | 0 | |
| Cedar Hill city | 480168 | 1 | 0 | 4 | 0 | 4 | 0 | 4 | |
| Cockrell Hill city | 480169 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Combine city | 480408 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Coppell city | 480170 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | |
| Dallas city | 480171 | 9 | 20 | 93 | 17 | 97 | 2 | 45 | Whole community, including the part in Collin County; in-county portion (county table): FMA RL 9, FMA SRL 19, NFIP RL 88, NFIP SRL 17, any category 91. |
| DeSoto city | 480172 | 0 | 2 | 10 | 0 | 12 | 0 | 2 | |
| Duncanville city | 480173 | 0 | 0 | 6 | 0 | 6 | 0 | 4 | |
| Farmers Branch city | 480174 | 0 | 4 | 8 | 3 | 9 | 0 | 5 | |
| Ferris city | 481076 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Glenn Heights city | 481265 | 1 | 0 | 0 | 0 | 1 | 1 | 0 | Whole community, including the part in Ellis County; none of its repeat-flood properties are in this county. |
| Grand Prairie city | 485472 | 1 | 8 | 4 | 1 | 12 | 3 | 3 | Whole community, including the part in Tarrant County; in-county portion (county table): FMA RL 1, FMA SRL 5, NFIP RL 3, NFIP SRL 0, any category 9. |
| Grapevine city | 480598 | 0 | 0 | 10 | 0 | 10 | 0 | 0 | Whole community, including the part in Tarrant County; none of its repeat-flood properties are in this county. |
| Highland Park town | 480178 | 0 | 1 | 1 | 0 | 2 | 1 | 0 | |
| Hutchins city | 480179 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Irving city | 480180 | 0 | 0 | 12 | 0 | 12 | 0 | 2 | |
| Lancaster city | 480182 | 0 | 8 | 10 | 3 | 15 | 2 | 1 | |
| Lewisville city | 480195 | 0 | 2 | 7 | 0 | 7 | 0 | 2 | Whole community, including the part in Denton County; none of its repeat-flood properties are in this county. |
| Mesquite city | 485490 | 0 | 6 | 10 | 4 | 13 | 2 | 1 | |
| Ovilla city | 481155 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Richardson city | 480184 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Rowlett city | 480185 | 1 | 0 | 1 | 0 | 2 | 0 | 1 | |
| Sachse city | 480186 | 0 | 0 | 1 | 0 | 1 | 0 | 1 | |
| Seagoville city | 480187 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Sunnyvale town | 480188 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| University Park city | 480189 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Wilmer city | 480190 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | |
| Wylie city | 480759 | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
Counts by occupancy group for each jurisdiction are in the Excel file, sheet "B2-c Jurisdictions".
Jurisdiction rows are whole NFIP communities and need not add up to the county total: a community that extends into another county is counted in full on each jurisdiction row, while the county table counts only its part in this county.
County repeat-flood properties by occupancy group
Sources: 1, 4
| Occupancy group | RL, FMAproperties | SRL, FMAproperties | RL, NFIPproperties | SRL, NFIPproperties | Any categoryproperties | Mitigatedproperties | Currently insuredproperties |
|---|---|---|---|---|---|---|---|
| single-family residential | 29 | 65 | 205 | 44 | 229 | 10 | 92 |
| 2 to 4 unit residential | 0 | 0 | 2 | 0 | 2 | 0 | 1 |
| other residential | 0 | 0 | 5 | 0 | 5 | 0 | 0 |
| non-residential | 2 | 2 | 17 | 2 | 18 | 0 | 3 |
| not reported | 0 | 0 | 0 | 0 | 0 | 0 | 0 |
FEMA's occupancy groups have no institutional class; institutional properties are counted in non-residential or other residential in the table by occupancy group.
FMA RL and FMA SRL are the Flood Mitigation Assistance definitions (44 CFR 77.2), the ones the FEMA Local Mitigation Planning Policy Guide cites. NFIP repetitive loss (the FEMA insurance definition) is 2 or more claims over $1,000 in 10 years, and a property can leave that group once it is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured. The Methods page gives the OpenFEMA field details.
Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (FEMA's data date 2026-08-02; file version 2026-08-04). No property is identified. County assignment is FEMA's geocode.
In this county 5 properties are FMA repetitive loss but not NFIP repetitive loss, and 203 properties are NFIP repetitive loss but not FMA repetitive loss.
Exact counts; no count suppression.
Sources
Tables cite these sources by number. The full list, for the plan's bibliography (FEMA review item A4-a):
- FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
- FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
- FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
- FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
- FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-30, https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_Counties.zip (download, 25 MB), https://www.fema.gov/about/reports-and-data/openfema/nri/v120/NRI_Table_CensusTracts.zip (download, 635 MB)
- NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-30, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/
- NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-30, https://www.weather.gov/gis/ZoneCounty
- U.S. Census Bureau, Census 2024 Gazetteer, 2020 place by county, CT county-to-cousub crosswalk, version 2024-gazetteer, pulled 2026-09-30, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_counties_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_cousubs_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_place_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_unsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_elsd_national.zip, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/2024_Gaz_scsd_national.zip, https://www2.census.gov/geo/docs/reference/codes2020/national_place_by_county2020.txt, https://www2.census.gov/geo/docs/reference/ct_change/ct_cou_to_cousub_crosswalk.xlsx (used to match place names and codes; no table prints its values)
What this packet is and what the plan adds
This packet is the federal data for the plan's risk assessment, organized by the items of FEMA's Local Mitigation Plan Review Tool, Element B. Each section heading names the item its tables support; the plan and FEMA's review decide whether the item is met.
The plan adds what only the community has: local data on assets, critical facilities, development and each jurisdiction's impacts; local hazard history, including state-declared emergencies; the mitigation strategy; and adoption.
How the federal data are built: National Risk Index values are FEMA's model, not counts of events. Storm Events is more complete from 1996; zone-level records are placed by forecast zone, not by location in the county. Public Assistance for a jurisdiction is matched by applicant name. The Methods page gives every rule and the known edge cases.
OpenFEMA disclaimer
This product uses the Federal Emergency Management Agency's OpenFEMA API, but is not endorsed by FEMA. The Federal Government or FEMA cannot vouch for the data or analyses derived from these data after the data have been retrieved from the Agency's website(s).
Reuse, citation and corrections
Reuse and citation: Hazard Plain text and tables are licensed under Creative Commons Attribution 4.0 International (CC BY 4.0, https://creativecommons.org/licenses/by/4.0/); credit Hazard Plain and the release. The underlying federal data are public domain; OpenFEMA data are also subject to the OpenFEMA terms and conditions.
Cite this: Hazard Plain (2026). Dallas County, TX: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 48113). Automated baseline. https://hazardplain.org/tx/48113/ Built from FEMA OpenFEMA, the FEMA National Risk Index and NOAA NCEI Storm Events; source versions in the packet's Sources list.
Corrections: to report an error, name the packet, the table and what your records show. Contact: contact@hazardplain.org
Hazard Plain release 2026-10. As of 2026-09-30; Storm Events data through 2026-06-30. Automated baseline.