Natural hazards · Wilton

Wilton, CT natural hazards

Most of the natural-hazard damage FEMA expects in Wilton comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 119 claims here since 1978.

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

Expected damage

How exposed is Wilton?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Wilton to be higher than in 57% of U.S. communities, mostly from inland flooding and hurricanes.

Inland flooding73%Hurricanes19%Everything else8%

By hazard

What Wilton faces

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

Inland flooding

73% of expected damage

Above average · higher than 71% of U.S. places

Recorded about 4 times a year in the area

Hurricanes

19% of expected damage

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

Recorded about once every 7 years in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingDroughtAvalanchesTsunamisVolcanic 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 Wilton flood?

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

119paid claims since 1978

$2.5Mpaid to owners

17homes flooded more than once

19782026

Biggest named events

Hurricane Irene: 7 claims, $32K
Not a named storm: 6 claims, $23K
March 2010 Nor'easter: 5 claims, $20K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (2) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

No community discount. Wilton 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 Wilton

Wilton and the towns around it

Very lowLowModerateHighVery high

Westonmostly inland floodingHigh

New Canaanmostly inland floodingHigh

Westportmostly inland floodingHigh

Norwalkmostly inland floodingHigh

Wiltonmostly inland floodingModerate

Reddingmostly inland floodingModerate

Ridgefieldmostly inland floodingLow

Lewisboromostly inland floodingVery low

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. Wilton covers 5 census tracts, combined by population.

Money that reached townFlood claims are matched to Wilton’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Wilton. 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 Wilton total about $9.5M 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.