Natural hazards · Denning

Denning, IL natural hazards

Most of the natural-hazard damage FEMA expects in Denning comes from earthquakes, and overall the risk is high for a U.S. community. Flood insurance has paid 26 claims here since 1979. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Denning?

High

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Denning to be higher than in 76% of U.S. communities, mostly from earthquakes and inland flooding.

Earthquakes49%Inland flooding23%Cold waves11%Tornadoes7%Everything else10%

By hazard

What Denning faces

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

Earthquakes

49% of expected damage

Well above average · higher than 90% of U.S. places

Inland flooding

23% of expected damage

Below average · higher than 49% of U.S. places

Recorded about 4 times a year in the area

Cold waves

11% of expected damage

Well below average · higher than 21% of U.S. places

Recorded about once a year in the area

Tornadoes

7% of expected damage

Well above average · higher than 77% 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 Denning flood?

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

26paid claims since 1979

$344Kpaid to owners

0homes flooded more than once

19792026

Biggest named events

March storm: 6 claims, $88K

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Franklin County.

Disasters that hit Denning

1 federal disaster brought FEMA money here

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

Brought FEMA money into DenningDeclared for Franklin County only

2004

Record/Near Record Snow

$4K to the Township of Denning for repairs

Franklin County has had 8 natural disasters declared since 1953, most often severe storms and hurricanes.

Around Denning

Denning and the towns around it

Very lowLowModerateHighVery high

Freeman Spurmostly earthquakesHigh

Six Milemostly earthquakesHigh

Denningmostly earthquakesHigh

Frankfortmostly earthquakesHigh

Browningmostly earthquakesHigh

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. Denning covers 1 census tract, combined by population.

Money that reached townFlood claims are matched to Denning’s own flood-insurance community (here, the census tracts inside it); household aid to the registrant’s city; repair grants to the Township of Denning. 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 Denning total about $2.8M 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.