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Assumption Parish, Louisiana

Natural disaster risk, federal disaster history and flood insurance facts.

Relatively Low overall risk
32nd of 64highest risk in Louisiana
$20Mexpected losses a year
47federal declarations
1 in 8homes with flood insurance
Photo: CC0

Assumption Parish, Louisiana has a relatively low overall risk from natural hazards in FEMA's National Risk Index. Its risk score is higher than 70% of US counties. It ranks 32nd of 64 parishes in Louisiana. The costliest hazards here are hurricanes, inland flooding and drought. FEMA estimates about $20 million a year in expected losses, or roughly $961 per resident. Since 1965 it has been included in 47 federal disaster or emergency declarations for natural events (29 major disasters). The most recent was in January 2026 (severe winter storm). About 1 in 8 homes here carry federal flood insurance (995 policies). Since 1978, federal flood insurance has paid about $5.1 million on 883 claims here.

FEMA National Risk Index December 2025; OpenFEMA declarations to Nov 6, 2026; NFIP records. Updated November 6, 2026.

Top risks in Assumption Parish

$10.7 million a yearExpected losses. Damaging events about once every 4 years.
  • Know your evacuation zone and route before June 1.
  • Ask about roof age, shutters and the separate wind or hurricane deductible on your home policy.
$2.4 million a yearExpected losses. Damaging events about once every 4 years.
  • Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
  • Price a flood policy now. Most new federal policies take 30 days to start.
$2.4 million a yearExpected losses. Damaging events about 22 times a year.
  • Check local water restrictions.
  • Choose drought-tolerant plants.
HazardRatingScoreExpected loss a year
HurricaneHigh93.5
$11M
Inland floodingVery Low29.6
$2M
DroughtHigh96.5
$2M
TornadoModerate67.4
$2M
Coastal floodingModerate78.0
$1M
Cold waveLow50.3
$675K
Heat waveLow66.9
$554K
LightningLow51.4
$172K
Strong windLow19.9
$125K
HailVery Low26.9
$72K
EarthquakeVery Low30.0
$53K
Winter weatherVery Low20.6
$13K
Ice stormVery Low12.4
$5K
WildfireVery Low4.0
$930
LandslideVery Low14.4
$40

Scores are percentiles: a score of 90 means higher risk than about 90% of US counties for that hazard. Hazards FEMA does not rate here are left out. Social vulnerability is very high and community resilience is relatively moderate in FEMA's measures.

Federal disaster history

Recent disasters nationwide ›

Declarations by decade

Federal declarations for natural events that included Assumption Parish. 2020s bar runs to November 2026.

By type

Hurricane29
Flood9
Coastal Storm4
Severe Storm2
Severe Ice Storm2
Winter Storm1

Most recent

Jan 24, 2026Severe Winter StormEmergency
Sep 16, 2024Hurricane FrancineMajor disaster
Sep 10, 2024Tropical Storm FrancineEmergency
Sep 13, 2021Tropical Storm NicholasEmergency
Aug 29, 2021Hurricane IdaMajor disaster
Aug 27, 2021Tropical Storm IdaEmergency
Jun 2, 2021Severe Storms, Tornadoes, and FloodingMajor disaster
Mar 9, 2021Severe Winter StormsMajor disaster
Feb 18, 2021Severe Winter StormEmergency
Jan 12, 2021Hurricane ZetaMajor disaster
Show all 47
Oct 27, 2020Tropical Storm ZetaEmergency
Oct 16, 2020Hurricane DeltaMajor disaster
Oct 7, 2020Hurricane DeltaEmergency
Sep 14, 2020Hurricane SallyEmergency
Aug 28, 2020Hurricane LauraMajor disaster
Aug 23, 2020Tropical Storms Laura and MarcoEmergency
Jun 7, 2020Tropical Storm CristobalEmergency
Sep 19, 2019FloodingMajor disaster
Aug 27, 2019Hurricane BarryMajor disaster
Jul 11, 2019Tropical Storm BarryEmergency
May 29, 2019FloodingEmergency
Oct 16, 2017Tropical Storm HarveyMajor disaster
Oct 6, 2017Tropical Storm NateEmergency
Aug 14, 2016Severe Storms and FloodingMajor disaster
Aug 29, 2012Hurricane IsaacMajor disaster
Aug 27, 2012Tropical Storm IsaacEmergency
Aug 18, 2011FloodingMajor disaster
May 6, 2011FloodingEmergency
Sep 2, 2008Hurricane GustavMajor disaster
Aug 29, 2008Hurricane GustavEmergency
Sep 24, 2005Hurricane RitaMajor disaster
Sep 21, 2005Hurricane RitaEmergency
Aug 29, 2005Hurricane KatrinaMajor disaster
Aug 27, 2005Hurricane KatrinaEmergency
Sep 15, 2004Hurricane IvanMajor disaster
Oct 3, 2002Hurricane LiliMajor disaster
Sep 27, 2002Tropical Storm IsidoreMajor disaster
Jun 11, 2001Tropical Storm AllisonMajor disaster
Sep 23, 1998Hurricane Georges/Ts FrancesMajor disaster
May 10, 1995Severe Storms and FloodingMajor disaster
Aug 26, 1992Hurricane AndrewMajor disaster
May 3, 1991Severe Storms, Tornadoes & FloodingMajor disaster
Apr 9, 1980Severe Storms & FloodingMajor disaster
May 2, 1979Severe Storms & FloodingMajor disaster
Apr 27, 1973Severe Storms & FloodingMajor disaster
Oct 13, 1971Hurricane EdithMajor disaster
Sep 10, 1965Hurricane BetsyMajor disaster

Louisiana also had 9 statewide declarations that did not name single counties.

Storm history since 1953

Tornado risk by county ›

The National Weather Service has logged 88 storm reports in Assumption Parish since 1953, with 0 deaths and 10 injuries and about $5.5 million in reported damage. The strongest on record here was an EF3 tornado on February 23, 2016 near Westfield.

22tornadoes
13hail reports, largest 2 inches
41damaging thunderstorm winds
9floods and flash floods

Strongest tornadoes

DateStrengthNearHurt / killed
Feb 23, 2016EF3Westfield0 / 0
Sep 12, 1973F2–3 / 0
Feb 15, 1987F2–4 / 0
Oct 23, 1957F2–0 / 0
Oct 3, 1964F2–0 / 0

Most damaging storms

DateTypeNearDamage
Oct 9, 2002TornadoNapoleonville$2M
Sep 22, 2011LightningGrand Bayou$1M
Nov 27, 2003Thunderstorm WindNapoleonville$500K
Dec 8, 2009Flash FloodBelle Rose$500K
May 2, 1953Tornado–$250K
Sep 12, 1973Tornado–$250K

Source: NOAA Storm Events Database, county-based reports through Dec 9, 2024. Tornado records start in 1950, hail and wind in 1955, and floods and other storm types in 1996, so older decades undercount. Damage is in dollars of the year it happened and is often an estimate. Winter storms, heat and hurricanes are logged by forecast zone, not county, so they are not counted here.

Hurricanes and tropical storms

Hurricane risk by county ›

Since 1856, 29 hurricanes and 28 tropical storms have passed within 65 miles of the center of Assumption Parish, 26 of them since 1950. The strongest was an unnamed hurricane in 1856, with top winds near 150 mph about 61 miles away.

29hurricanes
10major hurricanes (Category 3+)
28tropical storms
2024most recent: Francine

Strongest storms nearby

DateStormStrengthClosest
Aug 10, 1856UnnamedCategory 4, 150 mph61 mi
Aug 29, 2021IdaCategory 4, 145 mph63 mi
Aug 26, 1992AndrewCategory 4, 140 mph65 mi
Sep 1, 1879UnnamedCategory 3, 125 mph65 mi
Sep 10, 1965BetsyCategory 3, 125 mph62 mi
Sep 8, 1974CarmenCategory 3, 120 mph56 mi

Most recent storms

DateStormStrengthClosest
Sep 11, 2024FrancineCategory 2, 105 mph44 mi
Aug 29, 2021IdaCategory 4, 145 mph63 mi
Jun 19, 2021ClaudetteTropical storm, 45 mph58 mi
Oct 28, 2020ZetaCategory 3, 115 mph56 mi
Jun 8, 2020CristobalTropical storm, 50 mph63 mi
Aug 29, 2012IsaacCategory 1, 80 mph64 mi

Source: NOAA National Hurricane Center best-track records (HURDAT2), 1851 to 2025 for the Atlantic and 1949 to 2025 for the eastern Pacific. A storm counts if its track passed within 65 miles of the county's center while it was a tropical storm or hurricane. Strength is the storm's top sustained wind at that point, not the wind measured in the county. Older storms over the open sea were sometimes missed.

Flood insurance in Assumption Parish

Check your address flood zone ›
11.8%of homes have federal flood insurance (995 policies)
28.8%of homes in mapped high-risk flood zones are insured
$5.1 millionpaid on 883 flood claims since 1978
1991costliest year, with $937,557 paid

National Flood Insurance Program (NFIP) records only; private flood policies are not included. Home counts as of Aug 3, 2026. Since 2021 NFIP prices each home separately under Risk Rating 2.0, so your price depends on the building, not the county. Ask an agent for a quote.

Homes in Assumption Parish

$150,300median home value (Louisiana $216,500, US $332,700)
1983median year homes were built (Louisiana 1983, US 1980)
45%of homes built before 1980, before many modern wind, quake and flood building rules
31.8%of homes are mobile homes, which are the least safe in tornadoes and high winds

Older homes and mobile homes usually suffer more damage in storms, floods and earthquakes, and can cost more to insure. If you are buying, ask about roof age, foundation bolting and any retrofits. Source: US Census Bureau, American Community Survey 2020 to 2024 5-year estimates; 10,066 housing units.

Compare in Louisiana

All 64 ›
Largest countiesOverall riskTop hazard
East Baton Rouge ParishHighInland flooding
Jefferson ParishHighHurricane
Orleans ParishHighHurricane
St. Tammany ParishHighHurricane
Lafayette ParishHighHurricane
Caddo ParishModerateInland flooding
Calcasieu ParishHighHurricane
Ouachita ParishModerateInland flooding

Neighboring counties

CountyOverall riskDeclarations
Ascension ParishModerate55
Terrebonne ParishModerate50
Lafourche ParishModerate51
Iberia ParishModerate41
St. Martin ParishModerate51
St. Mary ParishModerate45
Iberville ParishLow45
St. James ParishLow41

Common questions about Assumption Parish

What is the biggest natural hazard in Assumption Parish?

Hurricane has the highest expected yearly losses in Assumption Parish, about $10.7 million a year in FEMA's estimate. Inland flooding is second at $2.4 million.

How many federal disasters has Assumption Parish had?

Assumption Parish has been included in 47 federal disaster or emergency declarations for natural events since 1965, including 29 major disasters. The most recent was Severe Winter Storm in January 2026.

Is Assumption Parish a high-risk place to live?

Its overall rating is Relatively Low, 32nd highest of 64 in Louisiana. A county rating covers the whole area. Risk at one address can be much higher or lower, so check the FEMA flood map and ask about the home's history.

Do I need flood insurance in Assumption Parish?

Standard home insurance does not cover flooding. About 1 in 8 homes in Assumption Parish has federal flood insurance. Lenders require it in mapped high-risk zones, but many flood claims come from outside those zones.

How many tornadoes has Assumption Parish had?

NOAA records list 22 tornadoes in Assumption Parish since 1950. The strongest was an EF3 tornado on February 23, 2016 near Westfield. The weather service has also logged 13 hail reports and 9 floods here.

How many hurricanes have hit Assumption Parish?

NOAA's hurricane records show 29 hurricanes and 28 tropical storms passing within 65 miles of the center of Assumption Parish, including 10 major hurricanes (Category 3 or stronger). The strongest was an unnamed hurricane in 1856, with winds near 150 mph.

Sources: FEMA National Risk Index (December 2025), OpenFEMA Disaster Declarations Summaries, and NFIP policy and claims data. Hazard Compass is independent and not affiliated with FEMA. These figures describe the whole parish, not a single property, and are not insurance or safety advice. Report a problem.