Natural hazards · Delaware

Delaware, MI natural hazards

Most of the natural-hazard damage FEMA expects in Delaware comes from cold waves, and overall the risk is very low for a U.S. community. Flood insurance has paid 3 claims here since 1986.

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

Expected damage

How exposed is Delaware?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Delaware to be higher than in 17% of U.S. communities, mostly from cold waves and inland flooding.

Cold waves44%Inland flooding42%Tornadoes5%Everything else9%

By hazard

What Delaware faces

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

Cold waves

44% of expected damage

Above average · higher than 59% of U.S. places

Recorded about 3 times a year in the area

Inland flooding

42% of expected damage

Below average · higher than 37% of U.S. places

Recorded about once every 3 years in the area

Tornadoes

5% of expected damage

Above average · higher than 53% of U.S. places

Recorded about once every 65 years in the area

Lower here

Coastal floodingHurricanesHailIce stormsWinter weatherHeat 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 Delaware flood?

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

3paid claims since 1986

$25Kpaid to owners

0homes flooded more than once

19862026

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Sanilac County.

Disasters that hit Delaware

Federal disasters declared here

None of the disasters declared for Sanilac County shows FEMA aid or repair money reaching Delaware itself in FEMA’s records.

Brought FEMA money into DelawareDeclared for Sanilac County only

Sanilac County has had 10 natural disasters declared since 1953, most often severe storms and winter storms.

Around Delaware

Delaware and the towns around it

Very lowLowModerateHighVery high

Marionmostly inland floodingModerate

Mindenmostly cold wavesLow

Delawaremostly cold wavesVery low

Forestvillemostly cold wavesVery low

Forestermostly cold wavesVery low

Shermanmostly 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. Delaware covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Delaware’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Delaware. 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 Delaware total about $968K 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.