Hazard Plain Preview: automated baseline

Marion County, IN

Risk-assessment baseline packet

Unit
County area 18097
Release
2026-10
As of
2026-09-28
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.

A starting point for the plan's risk assessment (FEMA Local Mitigation Plan Review Tool, Element B). It does not replace local data or FEMA review. Section headings say which FEMA review item each table supports; whether an item is satisfied is decided by the plan and its reviewers.

Hazard Plain release 2026-10, as of 2026-09-28. Independent product; not a FEMA document.

Plan clock

Status
Approved, expires 2030-04-13
Plan
Marion County 2024 Hazard Mitigation Plan (FEMA plan 110211)
Approved
2025-04-14
Expires
2030-04-13
As of
2026-09-28
Days
1,293 days to expiry

What changed since your last plan (approved 2025-04-14)

New federal declarations
EM-3641-IN, EM-3651-IN, DR-4933-IN (3 declaration rows; 2 counted incidents)
Storm Events records since approval
52 (data through 2026-06-30)
Repetitive loss now
FMA RL 12, SRL 38 (44 CFR 77.2); any definition: 211
Repeat-flood change
First release: no prior release to compare.

Sources

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

Plan status for every jurisdiction listed in this county

JurisdictionTypeStatusPlanApprovedExpiresDays to expirynegative = days since expiryUpdate underwayNotes
Marion CountyCountyApproved, expires 2030-04-13Marion County 2024 Hazard Mitigation Plan (FEMA plan 110211)2025-04-142030-04-131,293member approved 2025-09-17
Beech Grove cityCityApproved, expires 2030-04-13Marion County 2024 Hazard Mitigation Plan (FEMA plan 110211)2025-04-142030-04-131,293member approved 2025-09-17
Indianapolis cityCityApproved, expires 2030-04-13Marion County 2024 Hazard Mitigation Plan (FEMA plan 110211)2025-04-142030-04-131,293
Lawrence cityCityApproved, expires 2030-04-13Marion County 2024 Hazard Mitigation Plan (FEMA plan 110211)2025-04-142030-04-131,293member approved 2025-09-17
Southport cityCityApproved, expires 2030-04-13Marion County 2024 Hazard Mitigation Plan (FEMA plan 110211)2025-04-142030-04-131,293member approved 2025-09-17
Speedway townTownApproved, expires 2030-04-13Marion County 2024 Hazard Mitigation Plan (FEMA plan 110211)2025-04-142030-04-131,293member approved 2025-09-17
Marion County Soil & Water Conservation DistrictConservation DistrictApproved, expires 2030-04-13Marion County 2024 Hazard Mitigation Plan (FEMA plan 110211)2025-04-142030-04-131,293member approved 2025-09-17
School Safety CommitteeSchool/School DistrictApproved, expires 2030-04-13Marion County 2024 Hazard Mitigation Plan (FEMA plan 110211)2025-04-142030-04-131,293member approved 2025-09-17

Source

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

State plan status and tribal plans in this state: see the state page.

Supports B1-a: hazards

Hazards NRI does not cover: check locally

  • 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)

Rank by EALHazardNRI risk ratingEAL ratingEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL total (see note)modeled dollars per yearStorm Events records since 1996countEvidence for an omissionNRI Not Applicable, no declaration and no Storm Events record since 1996Storm Events coverage note
1Inland FloodingRelatively HighRelatively High$162,892,660$407$602,074$163,495,141126
2TornadoVery HighRelatively High$22,381,935$194$17,013,726$39,395,85415
3Cold WaveRelatively HighVery High$811$12,892$27,264,592$27,278,2957
4EarthquakeRelatively ModerateRelatively Moderate$16,546,567$5,466,464$22,013,031Not in Storm Events. Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
5Heat WaveRelatively HighRelatively High$451under $1$19,736,653$19,737,1045
6Strong WindVery HighVery High$477,123$68$6,360,714$6,837,904384Includes 24 High Wind records and 1 Strong Wind record, event types the NRI definition of this hazard leaves out.
7LightningVery HighRelatively High$119,232$2,299,643$2,418,87422
8HailRelatively ModerateRelatively Moderate$2,307,740$772$52,722$2,361,234309
9Ice StormRelatively HighRelatively High$465,262$145,196$610,4572
10Winter WeatherRelatively HighRelatively High$156,663$51$413,583$570,29753
11DroughtRelatively LowRelatively Low$49,988$49,9886
12HurricaneVery LowVery Low$18,981$229$36$19,2460No recorded events in Storm Events since 1996 (data through 2026-06-30).
13WildfireVery LowVery Low$7,527under $1$1,338$8,8650No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
14LandslideRelatively LowVery Low$2,248$1,832$4,0800No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
AvalancheNot ApplicableNot Applicable0NRI rates avalanche Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
Coastal FloodingNot ApplicableNot Applicable0NRI rates coastal flooding Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30).
TsunamiNot ApplicableNot Applicable0NRI rates tsunami Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.
Volcanic ActivityNot ApplicableNot Applicable0NRI rates volcanic activity Not Applicable for this county, and no federal declaration for this county names it.No recorded events in Storm Events since 1996 (data through 2026-06-30). Storm Events coverage of this hazard is limited; absence is not evidence of low risk.

Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Check your state hazard mitigation plan's hazard list for this county; explain any hazard you drop.

Supports B1-b: location

Where each hazard occurs

HazardLocationCensus tracts ratedrated of all tracts
AvalancheCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 253
Coastal FloodingCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 253
Cold WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.253 of 253
DroughtAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.49 of 253
EarthquakeCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.253 of 253
HailAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.253 of 253
Heat WaveAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.253 of 253
HurricaneCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.253 of 253
Ice StormAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.253 of 253
Inland FloodingThe 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.253 of 253
LandslideCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.247 of 253
LightningAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.253 of 253
Strong WindAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.253 of 253
TornadoCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.253 of 253
TsunamiCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 253
Volcanic ActivityCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.0 of 253
WildfireCensus tract rating counts from the National Risk Index tract table (see B1-f). Tract maps and place names are not in this packet.201 of 253
Winter WeatherAffects the whole planning area; national data do not distinguish locations within the county. Confirm locally.253 of 253

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Supports B1-c: extent

Extent: scale, observed range and worst recorded event per hazard

HazardScaleRecordscount, yearsObserved rangeWorst recorded eventMost damaging (when different)How it applies to membersNote
Avalanchenone (count and damage)0Physical measure: in event narratives only; local data required.
Coastal Flood, Storm Surge/Tidenone in data (FIRM for depth)0Flood depth: see the FEMA Flood Insurance Rate Map.
Cold/Wind Chill, Extreme Cold/Wind Chillwind chill7, 1996 to 2026 (7 zone-level)1 day to 4 days (median 1 day); 7 with a recorded value4 consecutive days, 1996-02-02 to 1996-02-05, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Wind chill: in event narratives only; local data required.
Frost/Freeze (outside NRI Cold Wave definition)crop damage0Temperature: in event narratives only; local data required.
DroughtUS Drought Monitor D-scale6, 2010 to 2012 (6 zone-level)61 days to 92 days (median 76.5 days); 2 with a recorded value92 days (about 3.0 months), 2012-06-12 to 2012-09-11, a run of 4 consecutive Storm Events drought records, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.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)0No Storm Events record; local data required (e.g., USGS).
Hailhail size (inches)373, 1955 to 20260.75 in to 3 in (median 1 in); 373 with a recorded value3 in hail, 2011-05-22; same size also recorded on 1965-06-29Hail, 2006-04-14, $30,000 property; $0 crops (2006 dollars)Event records naming member places: Indianapolis city (83 records), Beech Grove city (18 records), Southport city (16 records), Lawrence city (12 records), Speedway town (12 records).
Excessive Heat, Heatheat index (narratives)5, 1997 to 2026 (5 zone-level)1 day to 6 days (median 1 day); 5 with a recorded value6 consecutive days, 2023-08-20 to 2023-08-25, zone-levelZone-level records: applies countywide; national data do not locate these events within the county.Heat index: in event narratives only; local data required.
Hurricane, Tropical Storm, Tropical DepressionSaffir-Simpson0Storm Events files every zone of a storm's episode under the storm's event type and category, so a Hurricane (Typhoon) record, especially an inland or remnant one, does not by itself mean hurricane-force winds here; read the damage and wind columns.
Ice StormSperry-Piltz (local data)2, 2011 to 2018 (2 zone-level)No damage reported in 2 records.Zone-level records: applies countywide; national data do not locate these events within the county.Ice thickness: in event narratives only; local data required.
Flash Flood, Flood, Lakeshore Flooddamage and flood days (FIRM for depth)126, 1996 to 2026 (23 zone-level)Flood, 2003-07-06, $10,600,000 property; crops not reported, reported for the zone (2003 dollars); NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countiesEvent records naming member places: Indianapolis city (22 records), Beech Grove city (3 records), Speedway town (3 records), Lawrence city (2 records), Southport city (1 record). Zone-level records (23) apply countywide.Flood depth: see the FEMA Flood Insurance Rate Map. Storm Events damage can be $0 or blank even for a major flood, so the worst record here may not be the worst flood; compare FEMA Public Assistance by declaration in B1-d.
Debris Flownone (count and damage)0Physical measure: in event narratives only; local data required.
Lightningannualized frequency (the measure FEMA's Local Mitigation Planning Handbook names)22, 1996 to 2023Lightning, 2006-07-18, $0 property; $0 crops (2006 dollars), 1 direct death, 1 direct injuryLightning, 2023-07-08, $750,000 property; $0 crops (2023 dollars)Event records naming member places: Indianapolis city (5 records), Southport city (3 records), Speedway town (2 records), Lawrence city (1 record).Storm Events lists lightning with damage or casualties; physical measure in event narratives only; local data required.
High Wind and Strong Wind (outside NRI Strong Wind definition)wind speed (kt and mph)25, 1996 to 2026 (25 zone-level)47 kt (54 mph) to 62 kt (71 mph) (median 54 kt (62 mph)); 23 with a recorded value62 kt (71 mph) measured, High Wind, 2002-03-09; NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countiesHigh Wind, 2024-09-27, $1,200,000 property; crops not reported, reported for the zone (2024 dollars)Zone-level records: applies countywide; national data do not locate these events within the county.
Thunderstorm Windwind speed (kt and mph)517, 1955 to 202639 kt (45 mph) to 87 kt (100 mph) (median 52 kt (60 mph)); 396 with a recorded value87 kt (100 mph), measurement type not recorded, Thunderstorm Wind, 1978-06-25Thunderstorm Wind, 2023-06-29, $2,500,000 property; $0 crops (2023 dollars)Event records naming member places: Indianapolis city (69 records), Speedway town (26 records), Beech Grove city (12 records), Lawrence city (11 records), Southport city (9 records).
TornadoEnhanced Fujita (F before Feb 2007)47, 1952 to 2019F/EF0 to F/EF4 (median F/EF1); 46 with a recorded valueF4 tornado, 1972-05-14, 8.4 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 200 yd wide, $250,000 property; crops not recorded (1972 dollars), 17 direct injuriesTornado, 2002-09-20, $40,000,000 property; crops not reported (2002 dollars)Event records naming member places: Indianapolis city (3 records), Beech Grove city (2 records), Lawrence city (1 record), Southport city (1 record).From 1996 on, tornado records are per-county segments and length is the path length within this county (NWS Instruction 10-1605); records before 1996 may give the whole path length, including the path outside this county, and before 1996 a tornado is listed once, under the county where it began, with the whole path's rating; counties farther along the path may not list it. Length is not used to rank tornadoes.
Tsunaminone (count and damage)0Physical measure: in event narratives only; local data required.
Volcanic Ash, Volcanic AshfallVolcanic Explosivity Index (local data)0Physical measure: in event narratives only; local data required.
Wildfireacres burned (local data)0Acres burned: in event narratives only; local data required.
Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleetnone in data (snowfall local)53, 1996 to 2026 (53 zone-level)Winter Weather, 2024-12-02, $700,000 property; $0 crops, reported for the zone (2024 dollars); NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countiesZone-level records: applies countywide; national data do not locate these events within the county.Snow depth: in event narratives only; local data required.

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, 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 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Supports B1-d: previous occurrences

Declaration rows
20
Counted incidents
16

Federal disaster declarations for this county

DeclaredIncident beganFEMA numberTypeTitleMapped hazardCounty Public Assistancefederal share obligated, nominal dollarsFlagsNotes
2026-08-252026-08-11DR-4933-INMajor disasterSEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODINGInland Flooding (primary); also designated: Strong Wind, Tornadonot yet in FEMA's PA summaries (they cover declarations through 2026-06-30)new since last plan; within last 5 years
2026-08-152026-08-11EM-3651-INEmergencySEVERE STORMS, STRAIGHT-LINE WINDS, TORNADOES, AND FLOODINGInland Flooding (primary); also designated: Strong Wind, Tornadonot yet in FEMA's PA summaries (they cover declarations through 2026-06-30)new since last plan; within last 5 yearssame incident as DR-4933
2026-01-242026-01-23EM-3641-INEmergencySEVERE WINTER STORMWinter Weathernone foundnew since last plan; within last 5 years
2020-04-032020-01-20DR-4515-INMajor disasterCOVID-19 PANDEMICNon-natural, not counted$25,405,931.08
2020-03-132020-01-20EM-3456-INEmergencyCOVID-19Non-natural, not countednone foundsame incident as DR-4515
2014-04-222014-01-05DR-4173-INMajor disasterSEVERE WINTER STORM AND SNOWSTORMWinter Weather$1,960,982.26
2008-06-082008-05-30DR-1766-INMajor disasterSEVERE STORMS, FLOODING, AND TORNADOESInland Flooding; Tornado$2,112,752.05
2007-03-122007-02-12EM-3274-INEmergencySNOWWinter Weather$1,089,059.65
2005-09-102005-08-29EM-3238-INEmergencyHURRICANE KATRINA EVACUATIONHurricane: evacuation support, not a local hazard event; not counted$99,355.55
2005-01-212005-01-01DR-1573-INMajor disasterSEVERE WINTER STORMS AND FLOODINGInland Flooding; Winter WeatherPA not declared for this county
2005-01-112004-12-21EM-3197-INEmergencySNOWWinter Weather$543,880.56
2004-06-032004-05-25DR-1520-INMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; TornadoPA not declared for this county
2003-09-052003-08-26DR-1487-INMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; TornadoPA not declared for this county
2003-07-112003-07-04DR-1476-INMajor disasterSEVERE STORMS, TORNADOES, AND FLOODINGInland Flooding; TornadoPA not declared for this county
2002-09-252002-09-20DR-1433-INMajor disasterSEVERE STORMS AND TORNADOESTornado$1,821,230.57
2002-06-132002-04-28DR-1418-INMajor disasterSEVERE STORMS, TORNADOES AND FLOODINGInland Flooding; TornadoPA not declared for this county
1999-01-151999-01-01EM-3135-INEmergencyIN-WINTER STORM 12/23/98Winter Weather$1,041,654.19
1996-04-021996-01-06DR-1109-INMajor disasterBLIZZARD OF 96Inland Floodingnone found
1992-09-181992-06-16DR-962-INMajor disasterSEVERE STORMS, TORNADOES & FLOODINGInland Flooding; Tornadonone found
1991-01-051990-12-28DR-891-INMajor disasterSEVERE STORMS & FLOODINGInland Floodingnone found

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.

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

Statewide declarations

DeclaredIncident beganFEMA numberTypeTitleMapped hazardFlagsNotes
1964-03-171964-03-17DR-162-INMajor disasterSEVERE STORMS & FLOODINGInland Flooding
1961-05-201961-05-20DR-113-INMajor disasterFLOODSInland Flooding
1954-10-261954-10-26DR-30-INMajor disasterFLOODInland Flooding

FEMA recorded these with designated area Statewide and no county. Listed on every county page in the state; not counted with county rows.

Source

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

Previous occurrences by hazard, with explicit no-event rows

HazardStorm Events recordsfull periodSince plan approvalrecordsDuring plan reviewrecordsLast 5 yearsrecordsDeclared incidentsdistinct incidentsDeclared since approvaldistinct incidentsPeriodStatement
Avalanche0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Coastal Flooding0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Cold Wave7316001996 to 2026-06-30
Drought6000001996 to 2026-06-30
Earthquake000000No Storm Events record; local data required (e.g., USGS).
Hail3734921001955 to 2026-06-30
Heat Wave5103001996 to 2026-06-30
Hurricane0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Ice Storm2000001996 to 2026-06-30
Inland Flooding1262371011996 to 2026-06-30
Landslide0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Lightning22001001996 to 2026-06-30
Strong Wind542371884111955 to 2026-06-30Includes 24 High Wind records and 1 Strong Wind record, event types the NRI definition of this hazard leaves out.
Tornado47000811950 to 2026-06-30
Tsunami0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Volcanic Activity0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Wildfire0000001996 to 2026-06-30No recorded events, 1996 to 2026-06-30, NOAA NCEI Storm Events
Winter Weather535210611996 to 2026-06-30

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

NOAA National Weather Service, NWS county-public forecast zones correlation file, version bp03mr20 to bp16ap26 (11 files; newest bp16ap26), pulled 2026-09-28, https://www.weather.gov/gis/ZoneCounty

Notable Storm Events records

DateEvent typeMagnitude or extentDamagenominal dollarsDirect deaths, injuriesindirect not countedLocationFlagsWhy listed
2026-01-24Cold/Wind Chilldamage not reported2, 0NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countiesnew since last plan; within last 5 yearsdeaths or injuries recorded
2024-12-02Winter Weather$700,000 property; $0 crops, reported for the zone (2024 dollars)0, 0NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countiesduring plan review, check whether your last plan included it; within last 5 yearsB1-c worst recorded: Winter Storm, Heavy Snow, Blizzard, Lake-Effect Snow, Winter Weather, Sleet
2024-02-16Heavy Snowdamage not reported1, 13NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countieswithin last 5 yearsdeaths or injuries recorded
2023-08-20Excessive Heat$0 property; $0 crops, reported for the zone (2023 dollars)0, 0NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countieswithin last 5 yearsB1-c worst recorded: Excessive Heat, Heat
2011-08-13Thunderstorm Wind61 kt (70 mph) estimated gust$975,000 property; $0 crops (2011 dollars)7, 43SHOOTERS HILLdeaths or injuries recorded
2011-05-22Hail3 indamage not reported0, 0CAMBYB1-c worst recorded: Hail
2006-07-18Lightning$0 property; $0 crops (2006 dollars)1, 1LAWRENCEB1-c worst recorded: Lightning
2003-07-06Flood$10,600,000 property; crops not reported, reported for the zone (2003 dollars)0, 0NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countiesB1-c worst recorded: Flash Flood, Flood, Lakeshore Flood
2002-03-09High Wind62 kt (71 mph) measureddamage not reported0, 0NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countiesB1-c worst recorded: High Wind and Strong Wind (outside NRI Strong Wind definition)
1996-02-02Cold/Wind Chilldamage not reported0, 0NWS zone INZ047 (MARION), zone-level: may include parts of neighboring countiesB1-c worst recorded: Cold/Wind Chill, Extreme Cold/Wind Chill
1978-06-25Thunderstorm Wind87 kt (100 mph), measurement type not recordeddamage not recorded (pre-1996 record)0, 0location not recordedB1-c worst recorded: Thunderstorm Wind
1972-05-14TornadoF4, 8.4 mi path length (records before 1996 may include the whole path; rating and listing come from the county where the tornado began), 200 yd wide$250,000 property; crops not recorded (1972 dollars)0, 17location not recordedB1-c worst recorded: Tornado

The full list is in the XLSX file, sheet "B1-d Storm Events history" (1,183 rows).

Storm Events records are more complete after 1996; before 1996 only Tornado (from 1950), Hail and Thunderstorm Wind (from 1955) exist. Zone-level records are placed with NWS zone-county files, which exist from 2020 on; an earlier record is placed by its zone number in the nearest later file only when its zone name matches that file, records from zones NWS renumbered are placed by name or left out, and a record whose zone is in no known file is left out of every count, so counts before 2020 can be low. Some current zones are also missing from the NWS files, so recent counts can be low too.

Sources

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, 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 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

State-declared emergencies are not in federal data. Add them from your state emergency management agency.

Tribal and special-area declarations in this state are listed on the state page.

Supports B1-e: probability

Probability: FEMA annualized frequency and descriptor per hazard

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
Avalancheevents per year1994 to 2023 (30 years)see B1-fNot Applicable in NRI for this county; no descriptor.
Coastal Floodingevents per year at a location (modeled)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Cold Wave3.11event-days per yearabout 3.11 days per yearLikelyevent-days in 4 of 30 years, 1996 to 2025 (13.3%)592005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 3.11 cold wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 4 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together. Frost/Freeze records are not counted in this descriptor: they record crop freezes, not cold waves.
Drought2.1event-days per yearabout 2.1 days per yearPossibleevent-days in 2 of 30 years, 1996 to 2025 (6.67%)702000 to 2025 (25.25 years; D3 and D4 only)countywideNRI gives about 2.1 drought event-days a year here (its annualized frequency over 25.25 years; not its event count divided by the years), but Storm Events has a record in only 2 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Earthquake0.00207annual probability at a locationchance a given location in the county has at least minor-damage shaking in a year: 0.207%not shownmodeledsee B1-fDescriptor not assigned: the NRI value is the chance at a location in the county, not how often the hazard affects the county, and Storm Events does not record earthquakes.
Hail4.24events per yearabout 4.24 per yearHighly likelyFEMA annualized frequency (modeled)161.1 (modeled)1986 to 2023 (38 years)countywide
Heat Wave4.37event-days per yearabout 4.37 days per yearLikelyevent-days in 4 of 30 years, 1996 to 2025 (13.3%)612005-11-12 to 2024-11-12 (19 years)countywideNRI gives about 4.37 heat wave event-days a year here (its annualized frequency over 19 years; not its event count divided by the years), but Storm Events has a record in only 4 of 30 years. NRI counts from a different source that records far more events than Storm Events, so this descriptor reads much lower than NRI's frequency; read the two together.
Hurricane0.0077events per yearabout 1 in 130 yearsUnlikelyFEMA annualized frequency (modeled)21851 to 2024 (Atlantic)see B1-fNRI counts hurricane and tropical storm tracks passing within storm-force wind range; federal declarations are counted separately in B1-d and need not match.
Ice Storm0.776event-days per yearabout 0.776 days per yearPossibleevent-days in 2 of 30 years, 1996 to 2025 (6.67%)531946-12-31 to 2014-02-12 (67 years)countywide
Inland Flooding2.93event-days per yearabout 2.93 days per yearHighly likelyevent-days in 28 of 30 years, 1996 to 2025 (93.3%)821996 to 2023 (28 years)see B1-f
Landslide0.123events per year (modeled)about 1 in 8 yearsLikelyFEMA annualized frequency (modeled)not shownmodeledsee B1-f
Lightning48.2days per year with a strikeabout 48.2 days per yearHighly likelyFEMA annualized frequency (modeled)not shown1995 to 2023 (29 years; CONUS)countywide
Strong Wind4.6events per yearabout 4.6 per yearHighly likelyFEMA annualized frequency (modeled)1751986 to 2023 (38 years)countywide
Tornado0.306events per yearabout 1 in 3 yearsLikelyFEMA 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)not shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Volcanic Activityannual probabilitynot shownmodeledsee B1-fNot Applicable in NRI for this county; no descriptor.
Wildfire0.0000251annual probability at a locationchance a given location in the county burns in a year: 0.00251%Storm Events records in 0 of 30 years, 1996 to 2025 (0%)not shownmodeledsee B1-fNo Storm Events record of this hazard, 1996 to 2025; descriptor not assigned (the NRI value is the chance at a location in the county, not how often the hazard affects the county)
Winter Weather10.1event-days per yearabout 10.1 days per yearLikelyevent-days in 26 of 30 years, 1996 to 2025 (86.7%)1912005-11-12 to 2024-11-12 (19 years)countywide

FEMA annualized frequency (modeled) comes from the National Risk Index v1.20 (December 2025). It is not recorded events divided by years, and what it measures depends on the hazard. For most hazards it estimates how often the hazard affects this county each year: it counts events or event-days (drought, heat wave, cold wave, winter weather, ice storm and inland flooding are in days per year; lightning is the number of days per year with a recorded cloud-to-ground strike, from the NOAA Storm Prediction Center daily lightning climatology); it may count events in the surrounding area (hail, strong wind, tornado, hurricane and ice storm use a 49 km grid and buffers) and is averaged over the county's area; and some hazards use a minimum value for places with no recorded event. Earthquake, wildfire and coastal flooding are different: FEMA computes them for each census block and averages them over the county, so the value is the chance (for coastal flooding, the modeled number of floods per year) at a location in the county, which is lower than the chance that the hazard strikes somewhere in the county. Earthquake is the chance of at least minor-damage shaking (U.S. Geological Survey model); wildfire is the chance that a location burns in a large fire (U.S. Forest Service burn probability); coastal flooding comes from FEMA flood zones and NOAA high-tide flooding, so it can be above 1 where high-tide flooding is frequent. Tsunami is the value at the county's most exposed location, from recorded events and modeled return periods. For these four hazards the packet gives no "1 in N years" and takes the descriptor from Storm Events (none for earthquake) unless the value is 1 or more a year. Landslide is a U.S. Geological Survey modeled county rate spread by slope susceptibility. Volcanic activity is the chance that a volcano affecting the county erupts in a year. Drought counts only extreme and exceptional drought (D3 and D4). Source: FEMA, National Risk Index Technical Documentation v1.20, sections 5.2.2 (Table 5), 5.2.3, 7.4, 10.4, 16.5, 17.1, 17.3.1, 17.5, 20.3.1, 21.4, 22.4 and 6 to 23.

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Descriptor scale used in this packet (defined per unit)

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

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Intensity bands: historical frequency (Storm Events)

HazardBandYearsEventscounty-coded recordsYears in periodEvents per yearevents / years
Hail1.00-1.99 in1996 to 2025172305.73
Hail2.00 in+1996 to 202510300.333
Strong Wind (Thunderstorm Wind records)50-64 kt1996 to 20253023010.1
Strong Wind (Thunderstorm Wind records)65 kt+1996 to 202519300.633
Strong Wind (Thunderstorm Wind records)unmeasured or below 50 kt1996 to 202524300.8
TornadoEF0-11996 to 202511300.367
TornadoEF2-31996 to 20254300.133
TornadoEF4-51996 to 20250300
Tornadounrated (EFU)1996 to 20250300

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.

Source

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

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.

Supports B1-f: variation across the planning area

Range of census tract risk within the county

HazardTractsrated of allRisk score minNRI score, 0 to 100MedianMaxTracts by ratingNote
Avalanche0 of 253Not Applicable 253
Coastal Flooding0 of 253Not Applicable 253
Cold Wave253 of 25315.868.589.3Relatively High 42, Relatively Moderate 199, Relatively Low 11, Very Low 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Drought49 of 25366.874.289.1Relatively Low 13, Very Low 36, No Rating 204National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. Agriculture is all of NRI's expected annual loss for this hazard in the county, so the tract range above mostly reflects where crop and livestock value is, not where buildings and people are. Confirm locally.
Earthquake253 of 25328.963.992.5Relatively High 2, Relatively Moderate 30, Relatively Low 205, Very Low 16
Hail253 of 25328.252.283.3Relatively Moderate 17, Relatively Low 221, Very Low 15National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Heat Wave253 of 2531.771.691.9Relatively High 26, Relatively Moderate 186, Relatively Low 40, Very Low 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Hurricane253 of 25312.717.130.6Very Low 253
Ice Storm253 of 2535.826.876.0Relatively Moderate 2, Relatively Low 76, Very Low 175National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Inland Flooding253 of 2532.544.699.3Very High 4, Relatively High 28, Relatively Moderate 84, Relatively Low 108, Very Low 29
Landslide247 of 2538.849.588.7Relatively Low 9, Very Low 238, No Rating 6
Lightning253 of 2532.643.175.8Relatively Moderate 84, Relatively Low 165, Very Low 4National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Strong Wind253 of 25314.862.686.6Relatively High 6, Relatively Moderate 172, Relatively Low 74, Very Low 1National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.
Tornado253 of 25335.766.196.1Very High 2, Relatively High 49, Relatively Moderate 178, Relatively Low 24
Tsunami0 of 253Not Applicable 253
Volcanic Activity0 of 253Not Applicable 253
Wildfire201 of 25318.527.461.3Very Low 201, No Rating 52
Winter Weather253 of 25322.846.670.2Relatively Moderate 102, Relatively Low 151National data give a county-wide or coarse (49 km grid or NWS zone) frequency for this hazard, so they cannot show members' hazard differing. The tract range above mostly reflects where buildings and people are. Confirm locally.

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.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Per-member block (Starter, confirm locally)

MemberTypePlan statusRepetitive lossFMA RL and SRL (44 CFR 77.2); repeat-flood, any definitionPublic Assistance matchedfederal share obligated, nominal dollarsEvent records naming this placeall years; since the member's planNotes
Marion CountyCountyApproved, expires 2030-04-13$844,598.240; 0No NFIP community ID on this member's plan row. Includes $842,587.49 for declarations not counted as hazard incidents (DR-4515-IN).
Beech Grove cityCityApproved, expires 2030-04-13FMA RL 0, SRL 0; any 0$117,500.6035; 3
Indianapolis cityCityApproved, expires 2030-04-13FMA RL 12, SRL 38; any 211$11,343,782.83182; 3Includes $6,359,610.33 for declarations not counted as hazard incidents (DR-4515-IN).
Lawrence cityCityApproved, expires 2030-04-13FMA RL 0, SRL 0; any 0$512,271.7827; 0
Southport cityCityApproved, expires 2030-04-13FMA RL 0, SRL 0; any 0$20,697.0730; 1
Speedway townTownApproved, expires 2030-04-13FMA RL 0, SRL 0; any 0$15,324.1443; 2

Member 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 member row, while the county table counts only its part in this county.

School districts and special districts get a plan clock row only.

Sources

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/NfipMultipleLossProperties (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

NOAA NCEI, NOAA NCEI Storm Events Database, details files (csvfiles v1.0), version c20260918, pulled 2026-09-28, https://www.ncei.noaa.gov/pub/data/swdi/stormevents/csvfiles/

Supports B2-a and B2-b: assets and impacts

Local data required

County-level starter. The plan must describe impacts for each participant and its own assets.

  • Critical facilities and lifelines per hazard
  • A problem statement per participant per hazard
  • Changes in development in hazard-prone areas since the last approval, or a statement of none (E1-a)
  • Future assets

County-level starter: exposure, expected annual loss and damage since the plan

HazardBuilding exposuremodeled dollarsAgriculture exposuremodeled dollarsPopulation exposedpeopleEAL buildingsmodeled dollars per yearEAL agriculturemodeled dollars per yearEAL population equivalencestatistical value of life and injury, $13.7M per life, not property damageEAL as % of exposurebuildings; agriculture where notedStorm Events damage since 2025-04-14county-coded records, property plus crops, nominal dollarsZone-level damage since planproperty plus crops, reported for the zonePublic Assistance since plannominal dollars; see noteNote
AvalancheNot Applicable in NRI for this county
Coastal FloodingNot Applicable in NRI for this county
Cold Wave$196,169,384,213$15,538,202977,041$811$12,892$27,264,592under 0.0001%
Drought$13,992,682$49,9880.357% (agriculture)NRI has no building exposure for this hazard; agriculture shown
Earthquake$351,711,771,009977,203$16,546,567$5,466,4640.0047%
Hail$196,169,384,213$15,538,202977,041$2,307,740$772$52,7220.00118%
Heat Wave$196,169,384,213$15,538,202977,041$451under $1$19,736,653under 0.0001%
Hurricane$195,458,629,333$15,400,330971,703$18,981$229$36under 0.0001%
Ice Storm$196,130,839,965976,697$465,262$145,1960.000237%
Inland Flooding$195,928,027,883$2,477,26134,880$162,892,660$407$602,074n/a (see note)$150,000none found (2 declarations)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. EAL as % of exposure: n/a.
Landslide$1,161,260,1814,753$2,248$1,8320.000194%
Lightning$196,169,384,213977,041$119,232$2,299,643under 0.0001%
Strong Wind$196,169,384,213$15,538,202977,041$477,123$68$6,360,7140.000243%$511,000$20,000none found (2 declarations)Storm Events damage since the plan includes 1 zone-level High Wind record ($20,000), an event type the NRI definition of this hazard leaves out.
Tornado$196,169,384,213$15,538,202977,041$22,381,935$194$17,013,7260.0114%none found (2 declarations)
TsunamiNot Applicable in NRI for this county
Volcanic ActivityNot Applicable in NRI for this county
Wildfire$5,928,284,868$1,129,50342,114$7,527under $1$1,3380.000127%
Winter Weather$196,169,384,213$15,538,202977,041$156,663$51$413,583under 0.0001%$150,000none found (1 declaration)

Totals since 2025-04-14 (Storm Events through 2026-06-30): 41 county-coded records, 28 with a damage value recorded (including $0), $661,000; 11 zone-level records, 3 with a damage value recorded (including $0), $170,000 reported for the zone; Public Assistance on counted declarations none found (3 declarations, 0 with PA).

Total = buildings + agriculture + population equivalence; FEMA values each expected death (or 10 injuries) at $13.7 million (2024 dollars).

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 must not be added up; the unit total counts each declaration once.

Dollars are nominal (as reported), labeled with the year; not adjusted for inflation.

Sources

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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 2026-09-28, 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 2026-09-28, https://www.weather.gov/gis/ZoneCounty

FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)

FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)

FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)

Supports B2-a: context

County context

MeasureValue
Population977,041
Building value (total, not at risk)$196,169,384,213
Agriculture value (total, not at risk)$15,538,202
NRI risk rating (all hazards)Relatively High
Expected annual loss, buildings and agriculture, all hazards$205,441,800
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)$79,358,573
Social vulnerability ratingRelatively Low
Community resilience ratingRelatively Moderate
NRI versionDecember 2025

FEMA's all-hazard expected annual loss total adds buildings, agriculture and population equivalence; the two parts are shown separately so the property figure is not read as including the statistical value of life.

Source

FEMA, FEMA National Risk Index 1.20.0 (December 2025), county and census tract tables, version 1.20.0, pulled 2026-09-28, 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)

Supports B2-c: repetitive loss

Repetitive loss in this county, both definitions

DefinitionPropertiesSevere repetitive lossProperties
Repetitive loss, FMA definition (44 CFR 77.2)12Severe repetitive loss, FMA definition (44 CFR 77.2)38
Repetitive loss, NFIP insurance definition208Severe repetitive loss, NFIP insurance definition34

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

Repeat-flood properties: county and state-level rows

ScopeRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
County total123820834211446
INDIANAPOLIS, CITY OF123820834211446
State level, not in this county: county not reported0060600

Repeat-flood properties by plan member (NFIP community)

MemberNFIP community IDRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredpropertiesNote
Beech Grove city1801580000000
Indianapolis city180159123820834211446
Lawrence city1801600000000
Southport city1801610000000
Speedway town1801620000000

Per-member types: XLSX sheet 'B2-c Members'.

Member 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 member row, while the county table counts only its part in this county.

County repeat-flood properties by occupancy group

Occupancy groupRL, FMApropertiesSRL, FMApropertiesRL, NFIPpropertiesSRL, NFIPpropertiesAny categorypropertiesMitigatedpropertiesCurrently insuredproperties
single-family residential123218828191443
2 to 4 unit residential0242400
other residential0010100
non-residential041541503
not reported0000000

Institutional properties cannot be separated in this data: FEMA's occupancy groups have no institutional class, so they fall 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; OpenFEMA's fmaRl field description omits the Increased Cost of Compliance clause of 44 CFR 77.2(i). NFIP repetitive loss (FEMA insurance definition, nfipRl) is 2 or more claims over $1,000 in 10 years and can drop to false when a property is mitigated. Also shown: NFIP severe repetitive loss, any category, mitigated and currently insured.

Your state NFIP coordinator's list may use the NFIP insurance definition, so its counts can be higher.

Counts are aggregates of FEMA's public NFIP Multiple Loss Properties file (as of 2026-08-02). No property is identified. County assignment is FEMA's geocode.

Counts may differ from your state NFIP coordinator's list, which is the source the Handbook names.

In this county 2 properties are FMA repetitive loss but not NFIP repetitive loss, and 198 properties are NFIP repetitive loss but not FMA repetitive loss.

Exact counts; no count suppression.

Sources

Every table above lists its own sources. The full list, for the plan's bibliography (FEMA review item A4-a):

  1. FEMA, OpenFEMA HazardMitigationPlanStatuses v1, version 2026-09-26T121003Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/HazardMitigationPlanStatuses (API)
  2. FEMA, OpenFEMA DisasterDeclarationsSummaries v2, version 2026-09-27T010817Z, pulled 2026-09-28, https://www.fema.gov/api/open/v2/DisasterDeclarationsSummaries (API)
  3. FEMA, OpenFEMA PublicAssistanceFundedProjectsSummaries v1, version 2026-09-26T151157Z, pulled 2026-09-28, https://www.fema.gov/api/open/v1/PublicAssistanceFundedProjectsSummaries (API)
  4. FEMA, OpenFEMA NfipMultipleLossProperties v1, version 2026-08-04T164045Z, pulled 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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 2026-09-28, 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

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).

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.

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). Marion County, IN: risk-assessment baseline packet, release 2026-10 (data as of 2026-09-28; County area 18097). Preview: automated baseline. 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: to be added

Hazard Plain release 2026-10. As of 2026-09-28; Storm Events data through 2026-06-30. File hazard-plain_2026-10_IN_18097. Preview: automated baseline.