Hazard Plain Automated baseline

Galveston County, TX

Risk-assessment baseline packet

County FIPS:
48167
Release:
2026-10
Data as of:
2026-09-30
Storm Events data through:
2026-06-30

Hazard Plain is an independent product built from public federal data. It is not a FEMA document and is not reviewed or endorsed by FEMA or any state agency.

Hazard Plain release 2026-10, as of 2026-09-30.

Summary

Plan status as of 2026-09-30: Approved, expires 2027-07-10. Plan: Galveston County (FEMA plan 107112), approved 2022-07-11.

Since the plan was approved on 2022-07-11: 1 new hazard declaration (1 incident): DR-4798-TX (Hurricane Beryl).

NOAA Storm Events records since that date: 65 records (data through 2026-06-30).

Highest expected annual loss (FEMA National Risk Index, modeled total; see B1-a): Inland Flooding ($62,969,859 a year), Cold Wave ($53,003,158) and Hurricane ($42,008,508).

Repetitive-loss flood properties now: FMA RL 456, SRL 849 (44 CFR 77.2); any definition: 3,278.

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 2027-07-10
Plan:
Galveston County (FEMA plan 107112)
Approved:
2022-07-11
Days to expiry:
283
Update underway:
none recorded in FEMA's plan tracker

What changed since your last plan (approved 2022-07-11)

New federal declarations:
1 new hazard declaration (1 incident): DR-4798-TX (Hurricane Beryl)
Storm Events records since approval:
65 records (data through 2026-06-30)
Repetitive loss now:
FMA RL 456, SRL 849 (44 CFR 77.2); any definition: 3,278
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: 21 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

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Galveston CountyCountyApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
Bayou Vista cityVillageApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
Clear Lake Shores cityCityApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
Dickinson cityCityApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
Friendswood cityCityApproved, expires 2031-04-15Harris County (FEMA plan 110989)2026-04-162031-04-151,658Also approved under plan 107112 (Galveston County, expires 2027-07-10). FEMA's plan status map shows one plan per jurisdiction and may show one of these; this packet uses the approved plan that expires last. this jurisdiction approved 2026-08-05
Galveston cityCityApproved, expires 2027-08-02Galveston (FEMA plan 108379)2022-08-032027-08-02306
Hitchcock cityCityApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
Jamaica Beach cityCityApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
Kemah cityCityNo approved plan on recordnonenonenoneFEMA tracker shows a plan in review
La Marque cityCityApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
League City cityCityApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
Santa Fe cityCityApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
Seabrook cityCityApproved, expires 2031-04-15Harris County (FEMA plan 110989)2026-04-162031-04-151,658
Texas City cityCityApproved, expires 2030-12-02Texas City (FEMA plan 111020)2025-12-032030-12-021,524
Tiki Island villageVillageApproved, expires 2027-07-10Galveston County (FEMA plan 107112)2022-07-112027-07-10283
Dickinson Water Control and Improvement DistrictWater/Sewer AuthorityApproved, expires 2031-07-12Dickinson Water Control and Improvement District (FEMA plan 111116)2026-07-132031-07-121,746
Galveston County Consolidated Drainage DistrictFlood Control DistrictApproved, expires 2031-01-22Galveston County Consolidated Drainage District (FEMA plan 111039)2026-01-232031-01-221,575
Galveston County Drainage District No. 1Water/Sewer AuthorityApproved, expires 2031-08-25Galveston County Drainage District No. 1 (FEMA plan 111642)2026-08-262031-08-251,790
Port of GalvestonHighway/Port/RailApproved, expires 2030-06-08Port of Galveston (FEMA plan 110350)2025-06-092030-06-081,347
Port of HoustonHighway/Port/RailNo approved plan on record. Approvable pending adoption, not yet eligiblenonenonenoneFEMA tracker shows a plan approvable pending adoptionNot yet eligible: adopt the approved plan.
UTMB HealthHospital/Medical FacilityApproved, expires 2031-04-07University of Texas Medical Branch (UTMB) (FEMA plan 111296)2026-04-082031-04-071,650

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 EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL total (see note)modeled dollars per yearStorm Events records, 1996 to 2026-06-30countStorm Events coverage note
1Inland FloodingRelatively HighRelatively High$60,415,212$806$2,553,840$62,969,859108
2Cold WaveVery HighVery High$518,964$3,740$52,480,455$53,003,1581
3HurricaneRelatively HighRelatively High$39,288,578$112,772$2,607,159$42,008,50817
4TornadoRelatively HighRelatively High$2,501,014$269$16,856,954$19,358,23846
5Coastal FloodingRelatively HighRelatively High$4,806,560n/a$610,286$5,416,84622
6Heat WaveRelatively ModerateRelatively Moderate$670$48$4,966,026$4,966,74414
7DroughtRelatively HighRelatively Highn/a$3,998,672n/a$3,998,67216
8LightningVery HighVery High$238,141n/a$2,593,214$2,831,35525
9Ice StormRelatively HighRelatively High$301,106n/a$776,418$1,077,5242
10WildfireRelatively LowRelatively Low$651,838$207$82,415$734,4600Declared 3 times; no Storm Events record of this type.
11Strong WindRelatively ModerateRelatively Moderate$190,129$341$436,940$627,410158Includes 3 High Wind and 1 Strong Wind records (NOAA non-thunderstorm wind types, outside NRI's Strong Wind definition).
12HailRelatively LowRelatively Low$211,909$1,634$345,156$558,69981
13EarthquakeVery LowRelatively Low$286,024n/a$127,263$413,288Storm Events does not record earthquakes.
14Winter WeatherVery LowRelatively Low$3,219$1$10,786$14,0063
15LandslideVery LowVery Low$121n/aunder $1$1210No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiInsufficient DataInsufficient Datan/an/an/an/a0No 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 wildfire, landslide and tsunami records (Storm Events records these hazards only in part).

Not applicable to this county per NRI, with no federal declaration and no Storm Events record since 1996: avalanche 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.

Coastal Flooding and 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

HazardHighest-rated census tractsNRI risk rating, score 0 to 100
Earthquaketract 7201 (Very Low, 32.8); tract 7209 (Very Low, 29.3); tract 7203.01 (Very Low, 29.0)
Hurricanetract 7240 (Relatively High, 96.6); tract 7239 (Relatively High, 95.4); tract 7262 (Relatively High, 94.6)
Landslidetract 7204 (Very Low, 62.7); tract 7215.02 (Very Low, 60.9); tract 7215.01 (Very Low, 60.1)
Tornadotract 7221 (Very High, 93.6); tract 7219.02 (Relatively High, 93.2); tract 7201 (Relatively High, 92.4)
Tsunamino tract has a National Risk Index rating for this hazard
Wildfiretract 7239 (Relatively High, 97.7); tract 7236 (Relatively Moderate, 92.7); tract 7219.02 (Relatively Moderate, 92.0)

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 7201 is Census Tract 7201). 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

HazardScaleRecordscount and yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to jurisdictionsNote
Coastal Flood, Storm Surge/Tidenone in data (flood depth: FIRM)22 records, 1996 to 2025 (22 zone-level)Storm Surge/Tide, 2008-09-12, $4,000,000,000 property; crops not reported (2008 dollars), 12 direct deaths (reported for the zone); NWS zone TXZ238Countywide (zone-level records).Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill1 record, 2021 (1 zone-level)2 days; 1 with a recorded value2 consecutive days, 2021-02-15 to 2021-02-16, 4 direct deaths, zone-levelCold/Wind Chill, 2021-02-15, $10,000,000 property; $0 crops, 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 damage0Temperature: in event narratives only (local data needed).
DroughtU.S. Drought Monitor scale (D0 to D4)16 records, 1996 to 2023 (16 zone-level)61 days to 141 days (median 91 days); 5 with a recorded value141 days (about 4.6 months), 2022-04-05 to 2022-08-23, a run of 5 consecutive Storm Events drought records, zone-levelDrought, 2000-09-01, property not reported; $102,300,000 crops, reported for the zone (2000 dollars) (as recorded; larger than this county's annual agriculture value in the National Risk Index (the county or state extension service keeps crop loss records))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.
EarthquakeModified Mercalli (local data)0Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hailhail size (inches)121 records, 1957 to 20240.7 in to 4.5 in (median 1 in); 121 with a recorded value4.5 in hail, 2013-04-02Event records naming jurisdictions in the plan: Dickinson city (15 records), League City city (11 records), Friendswood city (7 records), Jamaica Beach city (7 records), Santa Fe city (7 records), Texas City city (7 records), Galveston city (6 records), Hitchcock city (4 records), Kemah city (2 records), Bayou Vista city (1 record); and 1 more jurisdiction (see the Excel file).
Excessive Heat, Heatheat index (in event narratives)14 records, 1999 to 2023 (14 zone-level)1 day to 31 days (median 5 days); 13 with a recorded valueAugust 1999 (1 monthly summary record), zone-levelCountywide (zone-level records).Heat index: in event narratives only (local data needed).
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson17 records, 1998 to 2026 (17 zone-level)Strongest recorded: Hurricane (Typhoon) record (NOAA's event type name), 2008-09-12 to 2008-09-14, category 2, $1,000,000,000 property; crops not reported (2008 dollars); NWS zone TXZ238Countywide (zone-level records).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 StormSperry-Piltz ice scale (local data)2 records, 1997 to 2011 (2 zone-level)No damage reported in 2 records.Countywide (zone-level records).Ice thickness: in event narratives only (local data needed).
Flash Flood, Flood, Lakeshore Flooddamage and flood days (flood depth: FIRM)108 records, 1996 to 2025Flash Flood, 2017-08-26, $10,000,000,000 property; $10,000 crops (2017 dollars), 3 direct deathsEvent records naming jurisdictions in the plan: Galveston city (17 records), League City city (16 records), Friendswood city (6 records), Texas City city (6 records), Dickinson city (5 records), Jamaica Beach city (2 records), La Marque city (2 records), Clear Lake Shores city (1 record), Hitchcock city (1 record), Santa Fe city (1 record).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 Flownone (count and damage only)0Physical measure: in event narratives only (local data needed).
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)25 records, 1996 to 2025Lightning, 2006-08-23, $70,000 property; crops not reported (2006 dollars), 1 direct deathLightning, 1996-06-04, $2,000,000 property; crops not reported (1996 dollars)Event records naming jurisdictions in the plan: Galveston city (5 records), League City city (3 records), Dickinson city (2 records), Texas City city (2 records), Jamaica Beach city (1 record), Kemah city (1 record).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)4 records, 2006 to 2022 (4 zone-level)41 kt (47 mph) to 60 kt (69 mph) (median 52.5 kt (60 mph)); 4 with a recorded value60 kt (69 mph) measured gust, High Wind, 2010-04-24; NWS zone TXZ238Countywide (zone-level records).
Thunderstorm Windwind speed (kt and mph)232 records, 1964 to 202650 kt (58 mph) to 90 kt (104 mph) (median 53 kt (61 mph)); 149 with a recorded value90 kt (104 mph), measurement type not recorded, Thunderstorm Wind, 1995-08-21Thunderstorm Wind, 1993-05-02, $50,000,000 property; crops not recorded (1993 dollars)Event records naming jurisdictions in the plan: Galveston city (29 records), Dickinson city (23 records), League City city (20 records), Texas City city (11 records), Santa Fe city (7 records), Jamaica Beach city (6 records), Friendswood city (3 records), Clear Lake Shores city (2 records), Kemah city (2 records), La Marque city (2 records); and 2 more jurisdictions (see the Excel file).
TornadoEnhanced Fujita (Fujita before Feb 2007)125 records, 1957 to 2024F/EF0 to F/EF4 (median F/EF0); 123 with a recorded valueF4 tornado, 1961-09-12, 1 mi path length (whole path, pre-1996), 100 yd wide, damage not recorded (pre-1996 record), 8 direct deaths, 200 direct injuriesTornado, 1981-08-31, $25,000,000 property; crops not recorded (1981 dollars)Event records naming jurisdictions in the plan: Galveston city (6 records), Dickinson city (4 records), Friendswood city (4 records), Texas City city (4 records), League City city (3 records), Santa Fe city (3 records), Hitchcock city (1 record), Jamaica Beach city (1 record), Kemah city (1 record), La Marque city (1 record).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).
Tsunaminone (count and damage only)0Physical measure: in event narratives only (local data needed).
Wildfireacres burned (local data)0Acres burned: in event narratives only (local data needed).
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall: local data)3 records, 2004 to 2025 (3 zone-level)No damage reported in 3 records.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: 31 declarations covering 23 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

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2024-07-092024-07-05DR-4798-TXMajor disasterHurricane BerylHurricane$20,879,299.53new since last plan; within last 5 years
2021-02-192021-02-11DR-4586-TXMajor disasterSevere Winter StormsIce Storm$3,222,998.51
2021-02-142021-02-11EM-3554-TXEmergencySevere Winter StormIce Stormno Public Assistance recordedsame incident as DR-4586
2020-12-092020-08-23DR-4572-TXMajor disasterHurricane LauraHurricane$2,590,872.83
2020-08-242020-08-23EM-3540-TXEmergencyTropical Storms Marco and LauraHurricane$659,334.56same incident as DR-4572
2020-07-262020-07-25EM-3530-TXEmergencyHurricane HannaHurricaneno Public Assistance recorded
2020-03-252020-01-20DR-4485-TXMajor disasterCOVID-19 PandemicNon-natural, not counted$5,339,328.58
2020-03-132020-01-20EM-3458-TXEmergencyCOVID-19Non-natural, not countedno Public Assistance recordedsame incident as DR-4485
2017-08-252017-08-23DR-4332-TXMajor disasterHurricane HarveyHurricane$135,947,557.41
2015-11-252015-10-22DR-4245-TXMajor disasterSevere Storms, Tornadoes, Straight-Line Winds, and FloodingInland Flooding; Strong Wind; TornadoPA not declared for this county
2008-09-132008-09-07DR-1791-TXMajor disasterHurricane IkeHurricane (primary); also designated: Inland Flooding$408,638,498.68
2008-09-102008-09-07EM-3294-TXEmergencyHurricane IkeHurricane$0same incident as DR-1791
2008-08-292008-08-27EM-3290-TXEmergencyHurricane GustavHurricane$4,988.26
2008-03-142008-03-14EM-3284-TXEmergencyWildfiresWildfireno Public Assistance recorded
2007-08-182007-08-17EM-3277-TXEmergencyHurricane DeanHurricaneno Public Assistance recorded
2006-01-112005-11-27DR-1624-TXMajor disasterExtreme Wildfire ThreatWildfireno Public Assistance recorded
2005-09-242005-09-23DR-1606-TXMajor disasterHurricane RitaHurricane$6,653,416.17
2005-09-212005-09-20EM-3261-TXEmergencyHurricane RitaHurricane$712,590.44same incident as DR-1606
2005-09-022005-08-29EM-3216-TXEmergencyHurricane Katrina EvacuationHurricane: evacuation support, not a local hazard event; not counted$17,845.18
2003-07-172003-07-15DR-1479-TXMajor disasterHurricane ClaudetteHurricane$3,207,224.12
2002-09-262002-09-06DR-1434-TXMajor disasterTropical Storm FayHurricanePA not declared for this county
2001-06-092001-06-05DR-1379-TXMajor disasterTx-Tropical Storm Allison-06-06-2001Hurricane$1,054,378.63
1999-09-011999-08-01EM-3142-TXEmergencyExtreme Fire HazardsWildfireno Public Assistance recorded
1998-10-211998-10-17DR-1257-TXMajor disasterTx-Flooding 10/18/98Inland Flooding (primary); also designated: TornadoPA not declared for this county
1998-09-231998-09-09DR-1245-TXMajor disasterHurricane Georges - TexasHurricane; Inland Floodingno Public Assistance recorded
1998-08-261998-08-22DR-1239-TXMajor disasterTropical Storm CharleyHurricane; Inland Flooding: designated for Hazard Mitigation only (no Public or Individual Assistance for this county); not countedPA not declared for this county
1994-10-181994-10-14DR-1041-TXMajor disasterSevere Thunderstorms and FloodingInland FloodingPA not declared for this county
1983-08-191983-08-18DR-689-TXMajor disasterHurricane AliciaHurricaneno Public Assistance recorded
1979-09-251979-09-25DR-603-TXMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded
1979-07-281979-07-28DR-595-TXMajor disasterStorms & Flash FloodsInland Floodingno Public Assistance recorded
1973-07-111973-07-11DR-398-TXMajor disasterSevere Storms & FloodingInland Floodingno Public Assistance recorded

School districts and special districts in this county: $681,143.37 (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

DeclaredIncident beganFEMA numberTypeTitleMapped hazard
1998-06-231998-06-04EM-3127-TXEmergencyFireWildfire
1963-09-241963-09-24DR-159-TXMajor disasterHurricane CindyHurricane (primary); also designated: Inland Flooding
1961-09-161961-09-16DR-118-TXMajor disasterHurricane CarlaHurricane (primary); also designated: Inland Flooding
1960-07-151960-07-15DR-103-TXMajor disasterHeavy Rains, Hail, Floods & TornadoesHail; Inland Flooding; Tornado
1959-07-081959-07-08DR-93-TXMajor disasterFloodsInland Flooding
1958-06-061958-06-06DR-85-TXMajor disasterTornadoes, Rain, Hail & FloodsTornado (primary); also designated: Hail, Inland Flooding
1957-04-291957-04-29DR-72-TXMajor disasterHurricane, Rain, Wind, Hail & FloodsHurricane (primary); also designated: Hail, Inland Flooding
1954-07-011954-07-01DR-18-TXMajor disasterFloodInland Flooding
1953-06-191953-06-19DR-9-TXMajor disasterFloodInland Flooding
1953-05-151953-05-15DR-2-TXMajor disasterTornado & Heavy RainfallTornado

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, $92,725.69

Sources: 2, 3

FEMA numberDeclaredTitleApplicantPA obligatedfederal share obligated, nominal dollars
DR-4272-TX2016-06-11Severe Storms and FloodingSAN FELIPE$65,502.59
DR-4269-TX2016-04-25Severe Storms and FloodingSAN FELIPE$19,053.17
DR-4223-TX2015-05-29Severe Storms, Tornadoes, Straight-Line Winds and FloodingSAN FELIPE$8,169.93

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

HazardStorm Events records, all years on file(years in the Period column)Since plan approvalrecordsIn the 12 months before plan approvalrecordsLast 5 yearsrecordsDeclared incidents, all yearsseparate disastersDeclared since approvalseparate disastersPeriodStatement
Coastal Flooding22313001996 to 2026-06-30
Cold Wave1000001996 to 2026-06-30
Drought16347001996 to 2026-06-30
Earthquake000000Storm Events does not record earthquakes; the USGS earthquake catalog is the source.
Hail12110010001955 to 2026-06-30
Heat Wave14606001996 to 2026-06-30
Hurricane171111311996 to 2026-06-30
Ice Storm2000101996 to 2026-06-30
Inland Flooding108909801996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning25425001996 to 2026-06-30
Strong Wind23627330101955 to 2026-06-30Includes 3 High Wind and 1 Strong Wind records.
Tornado125122201950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire0000301996 to 2026-06-30No Storm Events records of this type; 3 federal declared incidents (see declarations table)
Winter Weather3101001996 to 2026-06-30

Notable Storm Events records

Sources: 1, 6, 7

DateEvent typeMagnitude or extentDamagenominal dollarsDeaths, injuriesdirect onlyLocationFlagsWhy listed
2022-04-05Drought$0 property; $0 crops, reported for the zone (2022 dollars)0, 0NWS zone TXZ338 (COASTAL GALVESTON), zone-levelin the 12 months before plan approval; within last 5 yearsB1-c worst recorded: Drought
2021-02-15Cold/Wind Chill$10,000,000 property; $0 crops, reported for the zone (2021 dollars)4, 0NWS zone TXZ438 (GALVESTON ISLAND AND BOLIVAR PENINSULA), zone-leveldeaths or injuries recorded
2017-08-26Flash Flood$10,000,000,000 property; $10,000 crops (2017 dollars)3, 0SAN LEON to TEXAS CITYB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2013-04-02Hail4.5 in$1,100,000 property; crops not reported (2013 dollars)0, 0HITCHCOCKB1-c worst recorded: Hail
2010-04-24High Wind60 kt (69 mph) measured gust$20,000 property; $0 crops, reported for the zone (2010 dollars)0, 0NWS zone TXZ238 (GALVESTON), zone-levelB1-c worst recorded: High Wind and Strong Wind
2008-09-12Storm Surge/Tide$4,000,000,000 property; crops not reported, reported for the zone (2008 dollars)12, 0NWS zone TXZ238 (GALVESTON), zone-leveldeaths or injuries recorded
2008-09-12Hurricane (Typhoon), NOAA's event type namecategory 2$1,000,000,000 property; crops not reported, reported for the zone (2008 dollars)0, 0NWS zone TXZ238 (GALVESTON), zone-levelB1-c worst recorded: Hurricane, Tropical Storm, Tropical Depression
2006-08-23Lightning$70,000 property; crops not reported (2006 dollars)1, 0GALVESTONB1-c worst recorded: Lightning
1999-08-01Heatdamage not reported0, 0NWS zone TXZ238 (GALVESTON), zone-levelB1-c worst recorded: Excessive Heat, Heat
1995-08-21Thunderstorm Wind90 kt (104 mph), measurement type not recordeddamage not recorded (pre-1996 record)0, 0High IslandB1-c worst recorded: Thunderstorm Wind
1981-08-31TornadoF1, 12.9 mi path length (whole path, pre-1996), 83 yd wide$25,000,000 property; crops not recorded (1981 dollars)0, 2location not recordedB1-c most damaging: Tornado
1961-09-12TornadoF4, 1 mi path length (whole path, pre-1996), 100 yd widedamage not recorded (pre-1996 record)8, 200location not recordeddeaths or injuries recorded

The full list is in the Excel file, sheet "B1-d Storm Events history" (690 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

HazardFEMA annualized frequency (modeled)unit per rowUnitIn plain termsDescriptorDescriptor basisNRI events or days in its record period (hail, wind and tornado are area-weighted, so can be fractional)NRI periodLocationNote
Coastal Flooding3.76events per year at a location (modeled)about 3.8 per year at a given location in the countyHighly likelyFEMA annualized frequency (modeled)not shownmodeledsee B1-fDescriptor from NRI: the rate at a location is 1 or more a year, so the county rate is at least that.
Cold Wave0.425event-days per yearabout 0.425 days per yearPossible (from Storm Events: 1 of 30 years)event-days in 1 of 30 years, 1996 to 2025 (3.33%)5.442005-11-12 to 2024-11-12 (19 years)countywide
Drought20.9event-days per yearabout 20.9 days per yearLikely (from Storm Events: 5 of 30 years)event-days in 5 of 30 years, 1996 to 2025 (16.7%)8892000 to 2025 (25.25 years; D3 and D4 only)countywide
Earthquake0.000535annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.0535%not shownmodeledsee B1-fNo descriptor (Storm Events does not record earthquakes).
Hail1.74events per yearabout 1.74 per yearHighly likelyFEMA annualized frequency (modeled)76.4 (modeled)1986 to 2023 (38 years)countywide
Heat Wave15.3event-days per yearabout 15.3 days per yearLikely (from Storm Events: 5 of 30 years)event-days in 5 of 30 years, 1996 to 2025 (16.7%)2022005-11-12 to 2024-11-12 (19 years)countywide
Hurricane0.223events per yearabout 1 in 4 yearsLikelyFEMA annualized frequency (modeled)861851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are in B1-d.
Ice Storm0.767event-days per yearabout 0.767 days per yearPossible (from Storm Events: 2 of 30 years)event-days in 2 of 30 years, 1996 to 2025 (6.67%)281946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding2.93event-days per yearabout 2.93 days per yearHighly likely (from Storm Events: 28 of 30 years)event-days in 28 of 30 years, 1996 to 2025 (93.3%)821996 to 2023 (28 years)see B1-f
Landslide0.0345events per year (modeled)about 1 in 29 yearsPossibleFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning69.9days per year with a strikeabout 69.9 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind1.09events per yearabout 1.09 per yearHighly likelyFEMA annualized frequency (modeled)231986 to 2023 (38 years)countywide
Tornado0.619events per yearabout 0.62 per yearLikelyFEMA annualized frequency (modeled)not shown1950 to 2023 (EF2+); 1986 to 2023 (EF0-1)see B1-f
Tsunamiannual probability at the most exposed location (used in place of a county value)Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Wildfire0.00437annual probability at a locationchance a given location in the county burns in a year: 0.437%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo descriptor: no Storm Events record 1996 to 2025
Winter Weather0.821event-days per yearabout 0.821 days per yearLikely (from Storm Events: 3 of 30 years)event-days in 3 of 30 years, 1996 to 2025 (10%)14.82005-11-12 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

UnitDescriptorDefinition
events per yearHighly likely1 or more per year
events per yearLikelyabout once in 1 to 10 years
events per yearPossibleabout once in 10 to 100 years
events per yearUnlikelyless than once in 100 years
annual probabilityLikely10% to under 100% chance in a given year
annual probabilityPossible1% to under 10% chance in a given year
annual probabilityUnlikelyunder 1% chance in a given year
event-days (share of years)Highly likelyevent-days recorded in 90% or more of years
event-days (share of years)Likelyevent-days recorded in 10% to under 90% of years
event-days (share of years)Possibleevent-days recorded in some years but under 10% of years
lightning strike-daysHighly likelycloud-to-ground strikes on 1 or more days per year

Intensity bands: historical frequency (Storm Events)

Source: 6

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 202535301.17
Hail2.00 in+1996 to 20257300.233
Thunderstorm Wind (counted as NRI Strong Wind)50-64 kt1996 to 2025100303.33
Thunderstorm Wind (counted as NRI Strong Wind)65 kt+1996 to 20258300.267
Thunderstorm Wind (counted as NRI Strong Wind)unmeasured or below 50 kt1996 to 202543301.43
TornadoEF0-11996 to 202545301.5
TornadoEF2-31996 to 20251300.0333
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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

HazardTractsrated of allNRI risk score, 0 to 100Tracts by rating
MinMedianMax
Coastal Flooding98 of 10170.685.599.6Very High 2, Relatively High 8, Relatively Moderate 23, Relatively Low 52, Very Low 13, No Rating 3
Cold Wave101 of 10167.893.899.5Very High 38, Relatively High 62, Relatively Moderate 1
Drought41 of 10168.082.999.6Relatively High 4, Relatively Moderate 7, Relatively Low 15, Very Low 15, No Rating 60
Earthquake101 of 1012.411.932.8Very Low 101
Hail101 of 10123.541.061.0Relatively Low 76, Very Low 25
Heat Wave101 of 10111.950.284.4Relatively Moderate 38, Relatively Low 62, Very Low 1
Hurricane101 of 10177.286.396.6Relatively High 30, Relatively Moderate 70, Relatively Low 1
Ice Storm101 of 10130.464.987.7Relatively Moderate 34, Relatively Low 66, Very Low 1
Inland Flooding101 of 1011.434.298.2Very High 1, Relatively High 9, Relatively Moderate 23, Relatively Low 51, Very Low 17
Landslide70 of 10110.335.362.7Very Low 70, No Rating 31
Lightning101 of 10127.770.796.0Very High 1, Relatively High 32, Relatively Moderate 62, Relatively Low 6
Strong Wind101 of 10111.022.146.1Relatively Low 70, Very Low 31
Tornado101 of 10139.767.993.6Very High 1, Relatively High 30, Relatively Moderate 65, Relatively Low 5
Tsunami0 of 101Insufficient Data 101
Wildfire80 of 10119.266.697.7Relatively High 1, Relatively Moderate 5, Relatively Low 32, Very Low 42, No Rating 21
Winter Weather101 of 10113.816.521.1Relatively Low 15, Very Low 86

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

JurisdictionTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance to this jurisdictionFEMA records matched by applicant name; federal share obligated, nominal dollarsEvent records naming this placeall years; since its planNotes
Galveston CountyCountyApproved, expires 2027-07-10FMA RL 112, SRL 190; any 762$161,128,460.780 total; 0 since its planIncludes $4,292,213.98 for declarations not counted as hazard incidents (DR-4485-TX, EM-3216-TX).
Bayou Vista cityVillageApproved, expires 2027-07-10FMA RL 4, SRL 24; any 36$2,344,655.572 total; 0 since its plan
Clear Lake Shores cityCityApproved, expires 2027-07-10FMA RL 24, SRL 43; any 145$1,396,016.583 total; 0 since its plan
Dickinson cityCityApproved, expires 2027-07-10FMA RL 57, SRL 100; any 337$11,582,550.5849 total; 14 since its plan
Friendswood cityCityApproved, expires 2031-04-15FMA RL 114, SRL 179; any 394$21,688,576.4320 total; 0 since its planAlso approved under plan 107112 (Galveston County, expires 2027-07-10). FEMA's plan status map shows one plan per jurisdiction and may show one of these; this packet uses the approved plan that expires last. Whole community, including the part in Brazoria County and Harris County; in-county portion (county table): FMA RL 73, FMA SRL 160, NFIP RL 169, NFIP SRL 47, any category 308.
Galveston cityCityApproved, expires 2027-08-02FMA RL 48, SRL 127; any 655$129,271,836.1563 total; 4 since its planIncludes $8,472.71 for declarations not counted as hazard incidents (EM-3216-TX).
Hitchcock cityCityApproved, expires 2027-07-10FMA RL 15, SRL 18; any 107$2,988,322.917 total; 0 since its plan
Jamaica Beach cityCityApproved, expires 2027-07-10FMA RL 8, SRL 7; any 49$3,694,469.6017 total; 0 since its plan
Kemah cityCityNo approved plan on recordFMA RL 9, SRL 35; any 79$2,964,113.666 total; no approved planIncludes $35,451.20 for declarations not counted as hazard incidents (DR-4485-TX).
La Marque cityCityApproved, expires 2027-07-10FMA RL 16, SRL 14; any 104$5,603,516.506 total; 0 since its planIncludes $161,098.35 for declarations not counted as hazard incidents (DR-4485-TX).
League City cityCityApproved, expires 2027-07-10FMA RL 66, SRL 69; any 341$17,084,711.9153 total; 7 since its planWhole community, including the part in Harris County; in-county portion (county table): FMA RL 64, FMA SRL 62, NFIP RL 297, NFIP SRL 37, any category 330. Includes $143,150.62 for declarations not counted as hazard incidents (DR-4485-TX).
Santa Fe cityCityApproved, expires 2027-07-10FMA RL 9, SRL 9; any 45$3,040,211.2018 total; 0 since its plan
Seabrook cityCityApproved, expires 2031-04-15FMA RL 19, SRL 50; any 167no Public Assistance recorded0 total; 0 since its planWhole community, including the part in Harris County and Nueces County, plus 1 property with no county in FEMA's file; in-county portion (county table): FMA RL 0, FMA SRL 0, NFIP RL 2, NFIP SRL 0, any category 2.
Texas City cityCityApproved, expires 2030-12-02FMA RL 17, SRL 60; any 311$10,096,993.7830 total; 1 since its plan
Tiki Island villageVillageApproved, expires 2027-07-10FMA RL 0, SRL 0; any 2$2,186,494.480 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

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearCost of expected deaths and injuriesFEMA's dollar value per year, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2022-07-11county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
Coastal Flooding$41,589,821,335n/a225,215$4,806,560n/a$610,2860.0116%$0
Cold Wave$63,701,785,609$11,890,861350,477$518,964$3,740$52,480,4550.000815%
Droughtn/a$5,202,419n/an/a$3,998,672n/a76.9% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$107,610,879,802n/a350,682$286,024n/a$127,2630.000266%
Hail$63,701,786,464$11,890,861350,477$211,909$1,634$345,1560.000333%$0
Heat Wave$63,701,785,609$11,890,861350,477$670$48$4,966,026under 0.0001%$0
Hurricane$63,700,899,709$11,873,540350,469$39,288,578$112,772$2,607,1590.0617%$0$20,879,299.53
Ice Storm$63,054,012,826n/a348,617$301,106n/a$776,4180.000478%
Inland Flooding$63,445,935,018$3,175,582103,735$60,415,212$806$2,553,840n/a (see note)$5,000NRI 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$112,591,930n/a558$121n/aunder $10.000107%
Lightning$63,701,786,464n/a350,477$238,141n/a$2,593,2140.000374%$320,000
Strong Wind$63,701,786,464$11,890,861350,477$190,129$341$436,9400.000298%$141,000
Tornado$63,701,786,464$11,890,861350,477$2,501,014$269$16,856,9540.00393%$0
Tsunamin/an/an/an/an/an/aNRI publishes no building exposure for this county
Wildfire$2,952,200,327$5,812,33525,872$651,838$207$82,4150.0221%
Winter Weather$63,701,785,609$11,890,861350,477$3,219$1$10,786under 0.0001%$0

Totals since 2022-07-11 (Storm Events through 2026-06-30): 51 county-coded records, 50 with a damage value recorded (including $0), $466,000; 14 zone-level records, 7 with a damage value recorded (including $0), $0 reported for the zone; Public Assistance: $20,879,299.53 on 1 counted declaration.

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

MeasureValue
Population350,477
Building value (total, not at risk)$63,701,786,464
Agriculture value (total, not at risk)$11,890,861
NRI risk rating (all hazards)Relatively High
Expected annual loss, buildings and agriculture, all hazards$113,531,974
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)$84,446,914
Social vulnerability ratingRelatively Low
Community resilience ratingVery High
NRI versionDecember 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

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)456Severe repetitive loss, FMA definition (44 CFR 77.2)849
Repetitive loss, NFIP insurance definition2,855Severe repetitive loss, NFIP insurance definition496

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

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total4568492,8554963,2782261,315
of which: Crystal Beach town (community ID not in plan data)0040400
of which: Houston city (plan jurisdiction listed on the Fort Bend County and Harris County and Montgomery County page)0010100
of which: Jamaica Beach city8744549215
of which: Santa Fe city9939745219
of which: Dickinson city571003076433718235
of which: Tiki Island village0020201
of which: Bayou Vista city42416736032
of which: Abilene city (plan jurisdiction listed on the Jones County and Taylor County page)0010100
of which: Clear Lake Shores city2443124241451968
of which: Friendswood city731601694730857126
of which: Galveston city481276139365522297
of which: Galveston County (unincorporated area)11219068012476264191
of which: Hitchcock city151810011107551
of which: Kemah city9355614791717
of which: La Marque city16149910104223
of which: League City city64622973733012186
of which: Seabrook city0020200
of which: Texas City city176030153311654
Statewide, no county in FEMA's file381271319

2 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

JurisdictionNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Galveston County48547011219068012476264191
Bayou Vista city48158942416736032
Clear Lake Shores city4854612443124241451968
Dickinson city481569571003076433718235
Friendswood city4854681141792215739459177Whole community, including the part in Brazoria County and Harris County; in-county portion (county table): FMA RL 73, FMA SRL 160, NFIP RL 169, NFIP SRL 47, any category 308.
Galveston city485469481276139365522297
Hitchcock city485479151810011107551
Jamaica Beach city4812718744549215
Kemah city4854819355614791717
La Marque city48548616149910104223
League City city48548866693064234114194Whole community, including the part in Harris County; in-county portion (county table): FMA RL 64, FMA SRL 62, NFIP RL 297, NFIP SRL 37, any category 330.
Santa Fe city4815629939745219
Seabrook city4855071950136191672891Whole community, including the part in Harris County and Nueces County, plus 1 property with no county in FEMA's file; in-county portion (county table): FMA RL 0, FMA SRL 0, NFIP RL 2, NFIP SRL 0, any category 2.
Texas City city485514176030153311654
Tiki Island village4815850020201

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 groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential4387242,4174012,8082061,169
2 to 4 unit residential316541456319
other residential122652068241
non-residential1487319613461586
not reported0000000

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 181 properties are FMA repetitive loss but not NFIP repetitive loss, and 2,580 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):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-29T134039Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-29T162832Z, pulled 2026-09-30, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-29T150754Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-30, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)
  5. 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)
  6. 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/
  7. 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
  8. 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). Galveston County, TX: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-30; County FIPS 48167). Automated baseline. https://hazardplain.org/tx/48167/ 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.