Natural hazards · Dimmick

Dimmick, IL natural hazards

Most of the natural-hazard damage FEMA expects in Dimmick comes from inland flooding, and overall the risk is very low for a U.S. community. Flood insurance has paid 1 claim here since 1997. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Dimmick?

Very low

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Dimmick to be higher than in 9% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding46%Cold waves24%Tornadoes11%Earthquakes7%Everything else12%

By hazard

What Dimmick faces

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

Inland flooding

46% of expected damage

Well below average · higher than 18% of U.S. places

Recorded about 2 times a year in the area

Cold waves

24% of expected damage

Well below average · higher than 19% of U.S. places

Recorded about 5 times a year in the area

Tornadoes

11% of expected damage

Above average · higher than 65% of U.S. places

Recorded about once every 13 years in the area

Earthquakes

7% of expected damage

Above average · higher than 66% of U.S. places

Lower here

HurricanesHailIce stormsWinter weatherHeat wavesWildfireLandslidesStrong windLightningDrought

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 Dimmick flood?

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

1paid claims since 1997

$15Kpaid to owners

0homes flooded more than once

19972026

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: La Salle County.

Disasters that hit Dimmick

1 federal disaster brought FEMA money here

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

Brought FEMA money into DimmickDeclared for La Salle County only

1999

Il-Winter Storm 1/1/99

$3K to the Township of Dimmick for repairs

La Salle County has had 18 natural disasters declared since 1953, most often floods and winter storms.

Around Dimmick

Dimmick and the towns around it

Very lowLowModerateHighVery high

LaSallemostly inland floodingLow

Perumostly inland floodingLow

LaSallemostly cold wavesLow

Troy Grovemostly inland floodingVery low

Perumostly inland floodingVery low

Dimmickmostly inland floodingVery low

Walthammostly 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. Dimmick covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Dimmick’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Township of Dimmick. 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 Dimmick total about $2.9M 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.