Natural hazards · Flat Rock

Flat Rock, IL natural hazards

Most of the natural-hazard damage FEMA expects in Flat Rock comes from inland flooding, and overall the risk is moderate for a U.S. community. 1 federal disaster brought FEMA money into town.

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

Expected damage

How exposed is Flat Rock?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Flat Rock to be higher than in 58% of U.S. communities, mostly from inland flooding and earthquakes.

Inland flooding46%Earthquakes21%Drought9%Tornadoes8%Everything else15%

By hazard

What Flat Rock 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

Above average · higher than 61% of U.S. places

Recorded about 2 times a year in the area

Earthquakes

21% of expected damage

Well above average · higher than 83% of U.S. places

Drought

9% of expected damage

Recorded about 4 times a year in the area

Tornadoes

8% of expected damage

Well above average · higher than 75% of U.S. places

Recorded about once every 9 years in the area

Lower here

HurricanesHailIce stormsWinter weatherCold wavesHeat wavesWildfireLandslidesStrong windLightning

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 Flat Rock flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: Crawford County.

Disasters that hit Flat Rock

1 federal disaster brought FEMA money here

Disasters the President declared that paid out in Flat Rock itself: aid to households, or repair grants to the Village of Flat Rock.

Brought FEMA money into Flat RockDeclared for Crawford County only

2008

Severe Storms and Flooding

2 households applied for aid

Crawford County has had 7 natural disasters declared since 1953, most often floods and severe storms.

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. Flat Rock 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 Flat Rock’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Village of Flat Rock. 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.