Natural hazards · Deep River

Deep River, CT natural hazards

Most of the natural-hazard damage FEMA expects in Deep River comes from inland flooding, and overall the risk is high for a U.S. community. Flood insurance has paid 12 claims here since 1982.

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

Expected damage

How exposed is Deep River?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Deep River to be higher than in 61% of U.S. communities, mostly from inland flooding.

Inland flooding80%Hurricanes10%Everything else10%

By hazard

What Deep River faces

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

Inland flooding

80% of expected damage

Well above average · higher than 78% of U.S. places

Recorded about 2 times a year in the area

Hurricanes

10% of expected damage

Well above average · higher than 83% of U.S. places

Recorded about once every 5 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 Deep River flood?

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

12paid claims since 1982

$141Kpaid to owners

1homes flooded more than once

19822026

Biggest named events

Hurricane Sandy: 2 claims, $59K
March 2010 Nor'easter: 2 claims, $7K
Hurricane Irene: 1 claim, $16K

Homes that flooded again and again

■ FEMA “severe repetitive loss” (1) ■ flooded 2+ times

of homes in flood zones
are insured

of all homes
are insured

No community discount. Deep River 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 Deep River

Deep River and the towns around it

Very lowLowModerateHighVery high

Lymemostly inland floodingHigh

Chestermostly inland floodingHigh

Deep Rivermostly inland floodingHigh

Essexmostly inland floodingModerate

Westbrookmostly 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. Deep River covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Deep River’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Deep River. 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 Deep River total about $1.5M 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.