Natural hazards · Marlborough

Marlborough, CT natural hazards

Most of the natural-hazard damage FEMA expects in Marlborough comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 7 claims here since 1980.

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

Expected damage

How exposed is Marlborough?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Marlborough to be higher than in 46% of U.S. communities, mostly from inland flooding.

Inland flooding80%Hurricanes6%Everything else14%

By hazard

What Marlborough 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

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

Recorded about 4 times a year in the area

Hurricanes

6% of expected damage

Above average · higher than 73% of U.S. places

Recorded about once every 6 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 Marlborough flood?

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

7paid claims since 1980

$95Kpaid to owners

1homes flooded more than once

19802026

Biggest named events

Not a named storm: 2 claims, $36K

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. Marlborough 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 Marlborough

Marlborough and the towns around it

Very lowLowModerateHighVery high

Glastonburymostly inland floodingModerate

East Hamptonmostly inland floodingModerate

Marlboroughmostly inland floodingModerate

Colchestermostly inland floodingLow

Hebronmostly 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. Marlborough covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Marlborough’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Marlborough. 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 Marlborough total about $1.8M 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.