Natural hazards · Williamson

Williamson, NY natural hazards

Most of the natural-hazard damage FEMA expects in Williamson comes from inland flooding, and overall the risk is very low for a U.S. community. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Williamson?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Williamson to be higher than in 19% of U.S. communities, mostly from inland flooding.

Inland flooding77%Everything else23%

By hazard

What Williamson faces

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

Inland flooding

77% of expected damage

Below average · higher than 45% of U.S. places

Recorded about once a year in the area

Lower here

Coastal floodingHurricanesTornadoesHailIce 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 Williamson flood?

FEMA's records show no paid flood insurance claims in Williamson.

of all homes
are insured

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

Insurance rates: Wayne County.

Disasters that hit Williamson

2 federal disasters brought FEMA money here

Disasters the President declared that paid out in Williamson itself: aid to households, or repair grants to the Town of Williamson.

Brought FEMA money into WilliamsonDeclared for Wayne County only

2003

Ice Storm

123 households applied for aid $87K aid approved $92K to the Town of Williamson for repairs

1999

Snow

$8K to the Town of Williamson for repairs

Wayne County has had 12 natural disasters declared since 1953, most often floods and winter storms.

Around Williamson

Williamson and the towns around it

Very lowLowModerateHighVery high

Ontariomostly inland floodingLow

Williamsonmostly inland floodingVery low

Sodusmostly inland floodingVery low

Marionmostly 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. Williamson covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Williamson’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Town of Williamson. 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 Williamson total about $1.3M 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.