Natural hazards · Walnut

Walnut, KS natural hazards

Most of the natural-hazard damage FEMA expects in Walnut comes from inland flooding, and overall the risk is moderate for a U.S. community. Flood insurance has paid 1 claim here since 2026.

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

Expected damage

How exposed is Walnut?

Moderate

vs. U.S. communities

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

Inland flooding34%Tornadoes22%Drought15%Hail7%Heat waves7%Everything else16%

By hazard

What Walnut faces

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

Inland flooding

34% of expected damage

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

Recorded about once a year in the area

Tornadoes

22% of expected damage

Well above average · higher than 98% of U.S. places

Recorded about once every 4 years in the area

Drought

15% of expected damage

Recorded about 14 times a year in the area

Hail

7% of expected damage

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

Recorded about 8 times a year in the area

Heat waves

7% of expected damage

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

Recorded about 11 times a year in the area

Lower here

Ice stormsWinter weatherCold wavesWildfireEarthquakesLandslidesStrong windLightning

Not a risk here

Coastal floodingHurricanesAvalanchesTsunamisVolcanic 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 Walnut flood?

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

1paid claims since 2026

$15Kpaid to owners

0homes flooded more than once

20262026

of all homes
are insured

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

Insurance rates: Brown County.

Disasters that hit Walnut

Federal disasters declared here

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

Brought FEMA money into WalnutDeclared for Brown County only

Brown County has had 16 natural disasters declared since 1953, most often severe storms and floods.

Around Walnut

Walnut and the towns around it

Very lowLowModerateHighVery high

Sabethamostly inland floodingModerate

Walnutmostly inland floodingModerate

Powhattanmostly inland floodingModerate

Morrillmostly inland floodingModerate

Hiawathamostly tornadoesLow

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. Walnut covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Walnut’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Township of Walnut. 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 Walnut total about $2.7M 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.