Natural hazards · Grantsville

Grantsville, UT natural hazards

Most of the natural-hazard damage FEMA expects in Grantsville comes from wildfires, and overall the risk is high for a U.S. community. Flood insurance has paid 1 claim here since 1979.

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

Expected damage

How exposed is Grantsville?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Grantsville to be higher than in 69% of U.S. communities, mostly from wildfires.

Wildfire58%Earthquakes13%Inland flooding13%Strong wind5%Everything else10%

By hazard

What Grantsville faces

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

Wildfire

58% of expected damage

Well above average · among the top 1% of U.S. places

Earthquakes

13% of expected damage

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

Inland flooding

13% of expected damage

Well below average · higher than 6% of U.S. places

Recorded about once every 2 years in the area

Strong wind

5% of expected damage

Well above average · higher than 86% of U.S. places

Recorded about 2 times a year in the area

Lower here

TornadoesHailIce stormsWinter weatherCold wavesHeat wavesLandslidesLightningDroughtAvalanches

Not a risk here

Coastal floodingHurricanesTsunamisVolcanic 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 Grantsville flood?

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

1paid claims since 1979

$957paid to owners

0homes flooded more than once

19792026

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Tooele County.

Disasters that hit Grantsville

Federal disasters declared here

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

Brought FEMA money into GrantsvilleDeclared for Tooele County only

Tooele County has had 9 natural disasters declared since 1953, most often floods and fires.

Around Grantsville

Grantsville and the towns around it

Very lowLowModerateHighVery high

Erdamostly wildfiresHigh

Grantsvillemostly wildfiresHigh

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. Grantsville covers 2 census tracts, combined by population.

Money that reached townFlood claims are matched to Grantsville’s own flood-insurance community; household aid to the registrant’s city; repair grants to the City of Grantsville. 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 Grantsville total about $6.2M 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.