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Jacques Dupre HouseJacques Dupre House · Photo: Jerrye & Roy Klotz, MD · CC BY-SA 4.0
B−Hazard risk
Natural hazards in Erwinville · FEMA

FEMA expects about as much hazard damage per building in Erwinville as in the typical U.S. town, led by hurricanes

On FEMA’s National Risk Index, Erwinville gets a B− for hazard risk: lower expected damage per building than 53% of U.S. towns. Most of that expected damage is hurricanes (44%), then river and rain flooding (42%). FEMA’s files show no paid flood insurance claims here.

Graded on FEMA’s expected yearly building damage per dollar of building value (NRI v1.20, December 2025), weighted by where residents live; flood claims are shown, not graded. How hazard risk is graded

less than 53%of U.S. townsLess damageMoreExpected yearly damage per dollar of building, vs. the 21,298 U.S. towns we grade
By hazard

What Erwinville faces

Each hazard’s share of the building damage FEMA expects here, and how its rate compares with the rest of the country.

Hurricanes

44%of expected building damage
Well above average · higher than 89% of U.S. census tracts
Recorded about once every 5 years in the area

River and rain flooding

42%of expected building damage
Well below average · lower than 81% of U.S. census tracts
Recorded about once every 4 years in the area

Tornadoes

10%of expected building damage
Above average · higher than 78% of U.S. census tracts
Smaller shares here
 Earthquakes Strong wind Hail Ice storms Cold waves Lightning Winter storms Wildfire Heat waves Landslides
FEMA models no building damage here
Coastal floodingAvalanchesTsunamisVolcanic activity
People, not buildings.Counting harm to people as well as buildings, FEMA’s model puts drought at 19% of Erwinville’s expected losses. Drought does little damage to buildings (0.0%), so they aren’t part of the grade.

Shares are of FEMA’s expected building damage, the measure the grade uses; ranks compare each hazard’s building-damage rate with all 85,154 U.S. census tracts. In FEMA’s terms, river and rain flooding is FEMA’s “Inland Flooding” (rivers and streams overflowing their banks, or rain overwhelming drainage). FEMA defines coastal flooding as high or rising tides and storm surge, so surge damage is counted there. Drought isn’t listed: FEMA counts its losses in crops only.

Flood risk changes street by street. Check a specific address on FEMA’s flood map, and ask about flood insurance before you buy.
Hazard risk grade

What’s behind Erwinville’s grade

Hurricanes are 44% of the building damage FEMA expects in Erwinville, and Erwinville’s rate of hurricanes damage is higher than 89% of U.S. census tracts. Next is river and rain flooding at 42% (lower than 81% of U.S. census tracts).

Where Erwinville sits
Erwinville
Least damageMiddleMost damage

B− lower expected damage per building than 53% of U.S. towns (21,298).

Erwinville’s residents live in 2 census tracts; FEMA’s figures are combined by where they live.

What drives the damage to buildings
Hurricanes44%River and rain flooding42%Tornadoes10%Everything else4%

In dollars, FEMA expects about $1.4M a year in losses across Erwinville: $490K to buildings, the rest to people and crops.

Recent disaster.FEMA’s model looks at expected damage to the buildings standing today. After Hurricane Ida in 2021, FEMA took 150 aid registrations from Erwinville addresses (the town has 902 homes).
A small-area figure. Erwinville covers 2 census tracts, combined by where residents live. FEMA’s model is an average year for today’s buildings, not a record: the claims and disasters below are the record.

How TownRatings grades hazard risk →

Flood insurance claims

Does Erwinville flood? No paid flood claims on record

FEMA’s records show no paid flood insurance claims in Erwinville. That’s not a promise: most homes don’t carry flood insurance, so small floods go unrecorded.

of homes in flood zones are insured
of all homes are insured
No community discount

Erwinville isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: West Baton Rouge Parish.
What’s been done with FEMA grants
2buildings retrofitted against wind
Disasters

7 federal disasters brought FEMA money to Erwinville

Disasters that paid out in Erwinville itself (aid to households or repair grants to Erwinville), newest first, with that year’s flood claims.

  1. 2021Hurricane Ida150 households applied for aid$35K aid approved
  2. 2016Severe Storms and Flooding11 households applied for aid$8K aid approved
  3. 2012Hurricane Isaac3 households applied for aid$185 aid approved
  4. 2008Hurricane Gustav93 households applied for aid$102K aid approved
  5. 2005Hurricane Rita15 households applied for aid$16K aid approved
  6. 2005Hurricane Katrina50 households applied for aid$23K aid approved
Show all 7
  1. 2004Severe Storms and Flooding34 households applied for aid$28K aid approved
Disasters declared, by decade
Paid out in ErwinvilleWest Baton Rouge Parish only

West Baton Rouge Parish has had 27 natural disasters declared by the President since 1953, most often hurricanes and tropical storms, then floods.

Were you here?

Old photos of Erwinville after a storm or flood belong in the town’s history. Add one, or share what you remember below.

Add to the Erwinville archive →
Be ready

Get ready for what Erwinville faces

A short kit for the hazards that drive the building damage here, what to check before you buy, and where neighbors get alerts.

Hurricane season
  • The season runs June through November and peaks from mid-August to mid-October.
  • Bring in porch furniture and anything the wind can throw.
  • Fill the gas tank and charge phones before the storm arrives.
More from Ready.gov ↗
When the river rises
  • Turn around at flooded roads: a foot of moving water can carry off a car.
  • Flood insurance usually takes 30 days to start, so buy it before the forecast.
  • Keep papers and medicines up high, in a grab-and-go bag.
More from Ready.gov ↗
Tornado warnings
  • Pick your spot now: the lowest floor, an inside room, no windows.
  • A watch means be ready; a warning means take cover now.
  • Keep shoes and a flashlight by the bed.
More from Ready.gov ↗
Before you buy or rent
  • Look up the address on FEMA’s flood map.
  • Ask the seller or landlord whether it has ever flooded, and what flood insurance costs there.
  • Get a flood insurance quote early: policies usually start 30 days after you buy.
When a storm is coming
Forecast and alertsWeather →911, the nearest ERSafety →

Know where neighbors sign up for alerts? Add it to the Handbook so everyone has it.

Questions about natural hazards in Erwinville

Is Erwinville at risk for natural disasters?

On FEMA’s National Risk Index, Erwinville has lower expected damage per building than 53% of U.S. towns: B− for hazard risk. Most of the expected damage is hurricanes (44%) and river and rain flooding (42%). This is FEMA’s model of an average year for today’s buildings, not a forecast.

Is Erwinville in a flood zone?

Flood zones are drawn street by street, so the answer depends on the address: look it up on FEMA’s flood map. In West Baton Rouge Parish, 43% of homes in mapped flood zones carry federal flood insurance, and 12.2% of all homes do.

How much is flood insurance in Erwinville?

FEMA’s Community Rating System list shows no discount for Erwinville’s flood program. Premiums depend on the building; policies usually start 30 days after you buy, so get a quote early.

What was the biggest storm in Erwinville?

By FEMA money that reached Erwinville, Hurricane Gustav (2008): 93 households applied for aid, $102K approved.

Is Erwinville at risk from hurricanes?

It is the largest share of the building damage FEMA expects here (44%), and Erwinville’s rate for it is higher than 89% of U.S. census tracts.

Storm stories

Memories, warnings and help from neighbors in Erwinville.

Town Square →
Start the conversation

Sources: FEMA National Risk Index v1.20 (December 2025), census-tract table, combined by where Erwinville’s residents lived in the 2020 census; OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Homes: Census ACS 2020–24. Preparedness tips: Ready.gov. FEMA’s model is an average of expected damage, not a forecast. How hazard risk is graded.