Natural hazards · Harrison

Harrison, IN natural hazards

Most of the natural-hazard damage FEMA expects in Harrison comes from inland flooding, and overall the risk is moderate for a U.S. community.

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

Expected damage

How exposed is Harrison?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Harrison to be higher than in 43% of U.S. communities, mostly from inland flooding and tornadoes.

Inland flooding45%Tornadoes23%Cold waves14%Strong wind11%Everything else8%

By hazard

What Harrison faces

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

Inland flooding

45% of expected damage

Above average · higher than 55% of U.S. places

Recorded about 2 times a year in the area

Tornadoes

23% of expected damage

Well above average · higher than 97% of U.S. places

Recorded about once every 77 years in the area

Cold waves

14% of expected damage

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

Recorded about 2 times a year in the area

Strong wind

11% of expected damage

Well above average · higher than 88% of U.S. places

Recorded about 4 times a year in the area

Lower here

HurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesLightningDrought

Not a risk here

Coastal floodingAvalanchesTsunamisVolcanic 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 Harrison flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Dearborn County.

Disasters that hit Harrison

Federal disasters declared here

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

Brought FEMA money into HarrisonDeclared for Dearborn County only

Dearborn County has had 19 natural disasters declared since 1953, most often severe storms and floods.

Around Harrison

Harrison and the towns around it

Very lowLowModerateHighVery high

West Harrisonmostly inland floodingVery high

Harrisonmostly inland floodingHigh

Whitewatermostly inland floodingHigh

New Trentonmostly inland floodingHigh

Harrisonmostly inland floodingHigh

Loganmostly inland floodingHigh

Harrisonmostly inland floodingModerate

Brightmostly inland floodingModerate

Millermostly 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. Harrison is smaller than a census tract, so it shares the figures of the tract around its center.

Money that reached townFlood claims are matched to Harrison’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Harrison. FEMA’s model follows property values, so a place that recently lost many homes can rate lower than it feels.

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.