Natural hazards · Ansonia

Ansonia, CT natural hazards

Most of the natural-hazard damage FEMA expects in Ansonia comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 1 claim here since 2005.

FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarations

Expected damage

How exposed is Ansonia?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Ansonia to be higher than in 64% of U.S. communities, mostly from inland flooding and hurricanes.

Inland flooding72%Hurricanes17%Everything else11%

By hazard

What Ansonia faces

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

Inland flooding

72% of expected damage

Well above average · higher than 77% of U.S. places

Recorded about 4 times a year in the area

Hurricanes

17% of expected damage

Well above average · higher than 85% of U.S. places

Recorded about once every 6 years in the area

Lower here

Coastal floodingTornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

DroughtAvalanchesTsunamisVolcanic activity

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

Flood insurance claims

Does Ansonia flood?

Every paid claim on a federal flood insurance policy in Ansonia, from FEMA’s records.

1paid claims since 2005

$4Kpaid to owners

0homes flooded more than once

20052026

of homes in flood zones
are insured

of all homes
are insured

No community discount. Ansonia isn’t in FEMA’s Community Rating System, which cuts flood insurance up to 45% in towns that do extra flood-proofing.

Insurance rates: .

Around Ansonia

Ansonia and the towns around it

Very lowLowModerateHighVery high

Derbymostly inland floodingHigh

Ansoniamostly inland floodingHigh

Seymourmostly inland floodingModerate

Woodbridgemostly inland floodingModerate

About these numbers

How to read this page

An average, not a forecastFEMA’s National Risk Index estimates the damage 18 kinds of natural hazards cause in a typical year, from decades of records and models. A quiet decade can follow a bad year.

Compared by rate“Higher than N%” compares yearly damage as a share of what’s here, so a big city isn’t rated riskier just for having more buildings. Ansonia covers 4 census tracts, combined by population.

Money that reached townFlood claims are matched to Ansonia’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Ansonia. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

FEMA’s expected losses across Ansonia total about $5.2M a year, counting buildings, people and crops.

Sources: FEMA National Risk Index (December 2025); 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. Census tracts: U.S. Census Bureau.