County Hazards

States › Louisiana

Louisiana

The recorded hazard history of every county in Louisiana: storm events since 1950, federal disaster declarations since 1953, and National Flood Insurance Program claims since 1978.

Louisiana has 32,679 weather events in the NCEI Storm Events record since 1950 across 64 counties, led by damaging wind: 75.6 per 100 square miles against 56.0 nationally.

NCEI attributes 1,332 deaths and 3,706 injuries to those events, with property damage estimated at $96B. By events per 100 square miles the leading counties are Orleans, Caddo and Jefferson.

FEMA lists 111 disaster declarations touching the state since 1953, most recently Tropical Storm Arthur (30 Jun 2026). NFIP policyholders filed 485,743 flood claims since 1978, $21B paid; 359,013 residential policies are in force.

1,099events, last 12 monthsto 30 Jun 2026
32,679events since 195075.6 per 100 sq mi (US 56.0)
111disaster declarations since 1953last 30 Jun 2026
485,743NFIP flood claims$21B paid

NCEI notes that Storm Data is compiled from a variety of sources including the National Weather Service, other federal, state and local agencies, the media and the public; that property and crop damage figures are estimates; and that some events are recorded by NWS forecast zone rather than by county. FEMA notes that NFIP claim records are redacted and aggregated to protect the privacy of policyholders. Storm records through 30 Jun 2026; declarations refreshed 29 Sep 2026; claims as of 8 Sep 2026.

Compared with the United States

MeasureLouisianaUS
Recorded events since 195032,6791,977,440
Events per 100 square miles75.656.0
Events per 10,000 residents70.759.6
Deaths recorded by NCEI1,33226,435
Property damage (NCEI estimates)$96B$575B
NFIP claims per 1,000 residents105.08.1
Average paid NFIP claim$54K$43K
Residential flood policies in force359,0133,139,862

Hazard mix

Wind12,865
Hail6,412
Flood3,330
Tornado2,801
Heat2,491
Drought1,418
Tropical1,195
Winter1,092
Lightning437
Other311
Cold276
Wildfire27
Fog24
HazardEventsShare of USDeaths
■ Wind12,8651.8%56
■ Hail6,4121.5%—
■ Flood3,3301.8%39
■ Tornado2,8013.4%180
■ Heat2,4914.4%68
■ Drought1,4181.7%—
■ Tropical1,19510.7%887
■ Winter1,0920.4%28
■ Lightning4372.4%39
■ Other3110.7%1
■ Cold2760.5%22
■ Wildfire270.3%—
■ Fog240.1%12

Events by decade

Hail: 20Tornado: 151Wind: 58
Hail: 116Tornado: 176Wind: 229
Hail: 249Tornado: 316Wind: 587
Hail: 853Tornado: 337Wind: 1318
Hail: 1666Tornado: 406Flood: 363Wind: 2855Winter: 75Tropical: 92Heat: 13Cold: 60Drought: 156Lightning: 90Fog: 15Other: 24
Hail: 1565Tornado: 441Flood: 787Wind: 2821Winter: 194Tropical: 560Heat: 77Cold: 1Drought: 76Wildfire: 1Lightning: 195Fog: 6Other: 127
Hail: 1173Tornado: 558Flood: 1138Wind: 2787Winter: 522Tropical: 244Heat: 502Cold: 67Drought: 566Wildfire: 18Lightning: 119Fog: 1Other: 115
Hail: 770Tornado: 416Flood: 1042Wind: 2210Winter: 301Tropical: 299Heat: 1899Cold: 148Drought: 620Wildfire: 8Lightning: 33Fog: 2Other: 45
2291950s5211960s1,1521970s2,5081980s5,8151990s6,8512000s7,8102010s7,7932020s
Recorded events in Louisiana by decade and hazard group, including events recorded by forecast zone. HailTornadoFloodWindWinterTropicalHeatColdDroughtWildfireLightningFogOther NCEI recorded only tornadoes, hail and thunderstorm wind before 1996.

Counties by events per 100 square miles

CountyEventsLast 12 moPer 100 sq miPer 10k residentsDominantTornadoesHailDeclarationsNFIP claimsNRI risk
Orleans Parish54511321.514.5Flood253739127,255Relatively High
Caddo Parish2,13261242.491.5Wind109641352,438Relatively Moderate
Jefferson Parish5037167.111.6Wind667550135,664Relatively High
Ouachita Parish1,00444164.563.2Wind47256446,984Relatively Moderate
Bossier Parish1,33460158.9103.3Wind75399361,107Relatively Moderate
East Baton Rouge Parish71332156.515.7Wind461114722,575Relatively High
Webster Parish91028153.4251.5Wind6025337223Relatively Low
Lafayette Parish3917145.416.0Wind4278436,579Relatively High
Lincoln Parish64125135.9133.1Wind291583556Relatively Low
St. Charles Parish36323130.769.4Wind2750527,568Relatively Moderate
Red River Parish49823128.0658.4Wind24873216Very Low
West Carroll Parish4079113.2424.2Wind331043163Very Low
Calcasieu Parish1,0282396.650.1Wind1142264210,386Relatively High
St. Tammany Parish8023894.929.8Wind74985038,420Relatively High
Union Parish8162993.1386.9Wind5719136380Relatively Low
De Soto Parish8012391.4297.6Wind771933339Very Low
Jackson Parish5191791.2348.9Wind421102720Very Low
St. John the Baptist Parish194690.546.1Wind207468,979Relatively Moderate
West Baton Rouge Parish168487.360.4Wind112538285Very Low
East Carroll Parish367787.2508.3Wind307732116Very Low
Franklin Parish518683.0263.4Wind3213042320Very Low
Richland Parish4611183.0232.8Wind4011436473Very Low
Bienville Parish6732182.9526.8Wind441463541Very Low
Ascension Parish236681.418.4Wind2339666,783Relatively Moderate
Grant Parish5152480.1231.6Wind328837438Very Low
Caldwell Parish4211979.5439.9Wind217338490Very Low
Claiborne Parish5993079.4426.7Wind331343468Very Low
Sabine Parish6622876.4299.1Wind431713340Relatively Low
Morehouse Parish578672.7231.0Wind4815335239Relatively Low
Natchitoches Parish9033472.0243.9Wind6820741541Relatively Low
Tangipahoa Parish5303467.039.2Wind7972484,296Relatively Moderate
Livingston Parish4321566.729.6Wind43825214,639Relatively High
St. James Parish1581066.480.0Wind121344342Relatively Low
Madison Parish403664.6411.3Wind658833250Very Low
Acadia Parish410662.671.6Wind9064421,481Relatively Moderate
Winn Parish5943062.5440.4Wind4311033140Very Low
Tensas Parish3671060.9907.7Wind298929161Very Low
Rapides Parish7282655.156.6Wind84171494,231Relatively Moderate
Washington Parish3661554.781.1Wind375441674Relatively Moderate
Pointe Coupee Parish2971453.3145.9Wind2137471,896Relatively Low
Catahoula Parish3761553.1427.0Wind3774451,627Very Low
Concordia Parish363752.1197.5Wind3965371,212Very Low
West Feliciana Parish201749.8129.7Wind92444370Very Low
St. Landry Parish4571149.555.7Wind736846976Relatively Moderate
Jefferson Davis Parish319549.098.6Wind504442313Relatively Low
Iberia Parish279348.640.4Wind2842432,891Relatively Moderate
East Feliciana Parish218948.1112.7Wind142941110Relatively Low
Allen Parish338944.4149.0Wind297740442Relatively Low
St. Mary Parish247244.451.2Wind2439492,532Relatively Moderate
Avoyelles Parish3671344.193.5Wind5568421,652Relatively Low
Beauregard Parish4991543.1136.4Wind6110543516Relatively Low
Assumption Parish148443.071.5Wind221349883Relatively Low
St. Helena Parish173542.3158.5Wind21163965Very Low
Evangeline Parish276741.785.7Wind434535286Relatively Low
LaSalle Parish250940.0168.5Wind256338271Very Low
Iberville Parish239438.680.1Wind224247618Relatively Low
Vernon Parish450733.993.7Wind6111039338Relatively Low
St. Bernard Parish123232.627.8Wind16174823,919Relatively Low
Vermilion Parish320127.355.9Wind6258464,799Relatively Moderate
Cameron Parish348027.1685.0Wind6852393,470Very Low
St. Martin Parish191325.937.1Wind2539541,466Relatively Moderate
Lafourche Parish244522.925.0Wind4237546,203Relatively Moderate
Terrebonne Parish2762122.425.4Wind45345313,501Relatively Moderate
Plaquemines Parish173122.274.2Wind3527456,086Relatively Low

Events are county-recorded plus zone-recorded events whose zone is named for the county. NRI risk is FEMA's National Risk Index overall rating (December 2025).

Counties by flood claims per 100 policies in force

CountyClaims, last 10 yearsPolicies in forceClaims per 100 policiesClaims since 1978Paid
St. John the Baptist Parish3,9995,44873.48,979$655M
Cameron Parish62591068.73,470$210M
Allen Parish11129238.0442$9.5M
Calcasieu Parish4,20211,64136.110,386$324M
Beauregard Parish9429132.3516$8.8M
Morehouse Parish4415528.4239$6.9M
Avoyelles Parish20275226.91,652$18M
Vernon Parish6424825.8338$9.4M
Rapides Parish6562,68824.44,231$68M
Grant Parish3115220.4438$5.3M
Evangeline Parish9647220.3286$6.4M
Catahoula Parish10756419.01,627$15M
Tangipahoa Parish1,1476,82716.84,296$178M
St. Charles Parish1,6159,90716.37,568$161M
Washington Parish7949815.9674$16M

Counties with at least 100 residential policies in force. Claims by year of loss in the ten years to 2026, divided by residential policies in force as of 3 Aug 2026; a rough ratio, since policies in force today differ from those in force when the losses occurred.

Federal disaster declarations by year

195319902026
Declarations touching Louisiana by year declared, 1953 to 2026; each disaster number counted once.
Incident typeDeclarations
Hurricane38
Flood29
Severe Storm15
Fire5
Coastal Storm5
Tornado5
Severe Ice Storm3
Biological3
Winter Storm2
Other2

Most recent declarations (each disaster number once, with the number of counties designated):

DeclaredNumberTypeIncidentTitleCounties
30 Jun 2026DR-4927Major disasterTropical StormTropical Storm Arthur9
18 Feb 2026DR-4900Major disasterWinter StormSevere Winter Storm18
24 Jan 2026EM-3638EmergencyWinter StormSevere Winter Storm64
16 Sep 2024DR-4817Major disasterHurricaneHurricane Francine22
10 Sep 2024EM-3614EmergencyHurricaneTropical Storm Francine64
27 Sep 2023EM-3600EmergencyOtherSeawater Intrusion5
30 Aug 2023FM-5486Fire management assistanceFireHighway 113 Fire2
27 Aug 2023FM-5485Fire management assistanceFireLions Camp Road Fire1
25 Aug 2023FM-5484Fire management assistanceFireIda Fire1
23 Aug 2023FM-5482Fire management assistanceFireTiger Island Fire1
13 Sep 2021EM-3574EmergencyCoastal StormTropical Storm Nicholas64
29 Aug 2021DR-4611Major disasterHurricaneHurricane Ida64
27 Aug 2021EM-3568EmergencyHurricaneTropical Storm Ida64
2 Jun 2021DR-4606Major disasterFloodSevere Storms, Tornadoes, And Flooding7
9 Mar 2021DR-4590Major disasterSevere Ice StormSevere Winter Storms64

Flood insurance claims by year

197820022026
NFIP claims in Louisiana by year of loss, 1978 to 2026.

485,743 claims, 388,590 paid, $21B in total; 30,692 repetitive-loss and 5,430 severe repetitive-loss properties. ZIP codes in Louisiana with flood claims (522).

Year by year

Each year's events, declarations and claims: 2026 · 2025 · 2024 · 2023 · 2022 · 2021 · 2020 · 2019 · 2018 · 2017 · 2016 · 2015 · 2014 · 2013 · 2012 · 2011 · 2010 · 2009 · 2008 · 2007 · 2006 · 2005 · 2004 · 2003 · 2002 · 2001 · 2000 · 1999 · 1998 · 1997 · and earlier years back to 1950

Questions and answers

Which Louisiana counties have the most recorded tornadoes?

Calcasieu (114), Caddo (109) and Acadia (90), by NCEI count since 1950. Larger counties record more events; the state table also ranks by events per 100 square miles.

Which Louisiana counties have the most flood insurance claims?

Jefferson (135,664), Orleans (127,255) and St. Tammany (38,420) since 1978, in the OpenFEMA NFIP claims file.

How many federal disaster declarations has Louisiana had?

111 declarations since 1953 (major disaster, emergency and fire management assistance declarations combined), 3 of them in 2026 so far.

How does Louisiana compare with the national rate?

75.6 recorded events per 100 square miles against 56.0 nationally; 105.0 NFIP claims per 1,000 residents against 8.1.

Provenance

NOAA NCEI Storm Events through 30 Jun 2026; OpenFEMA DisasterDeclarationsSummaries v2 refreshed 29 Sep 2026; OpenFEMA NfipClaims v3 as of 8 Sep 2026; NfipResidentialPenetrationRates v1 (3 Aug 2026); FEMA National Risk Index December 2025; US Census Bureau 2021 population and area. Built 30 Sep 2026. Methodology.