Natural hazards · Seymour

Seymour, CT natural hazards

Most of the natural-hazard damage FEMA expects in Seymour comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 22 claims here since 1980.

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

Expected damage

How exposed is Seymour?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Seymour to be higher than in 51% of U.S. communities, mostly from inland flooding and hurricanes.

Inland flooding67%Hurricanes20%Everything else12%

By hazard

What Seymour faces

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

Inland flooding

67% of expected damage

Above average · higher than 63% of U.S. places

Recorded about 4 times a year in the area

Hurricanes

20% 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 windLightningDrought

Not a risk here

AvalanchesTsunamisVolcanic 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 Seymour flood?

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

22paid claims since 1980

$1.6Mpaid to owners

1homes flooded more than once

19802026

Biggest named events

Not a named storm: 4 claims, $6K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (0) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

No community discount. Seymour 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 Seymour

Seymour and the towns around it

Very lowLowModerateHighVery high

Derbymostly inland floodingHigh

Ansoniamostly inland floodingHigh

Beacon Fallsmostly inland floodingHigh

Sheltonmostly inland floodingModerate

Seymourmostly inland floodingModerate

Oxfordmostly inland floodingModerate

Woodbridgemostly inland floodingModerate

Bethanymostly inland floodingLow

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. Seymour covers 4 census tracts, combined by population.

Money that reached townFlood claims are matched to Seymour’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Seymour. 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 Seymour total about $4.7M 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.