Natural hazards · Prosser

Prosser, WA natural hazards

Most of the natural-hazard damage FEMA expects in Prosser comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 1 claim here since 2011.

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

Expected damage

How exposed is Prosser?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Prosser to be higher than in 56% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding65%Earthquakes21%Heat waves5%Everything else9%

By hazard

What Prosser faces

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

Inland flooding

65% of expected damage

Above average · higher than 70% of U.S. places

Recorded about once every 3 years in the area

Earthquakes

21% of expected damage

Well above average · higher than 82% of U.S. places

Heat waves

5% of expected damage

Well above average · higher than 81% of U.S. places

Recorded about 8 times a year in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesWildfireLandslidesStrong windLightningDroughtVolcanic activity

Not a risk here

Coastal floodingHurricanesAvalanchesTsunamis

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 Prosser flood?

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

1paid claims since 2011

$8Kpaid to owners

0homes flooded more than once

20112026

of all homes
are insured

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

Insurance rates: Benton County.

Disasters that hit Prosser

Federal disasters declared here

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

Brought FEMA money into ProsserDeclared for Benton County only

Benton County has had 18 natural disasters declared since 1953, most often floods and fires.

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. Prosser covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Prosser’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Prosser. 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 Prosser 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.