Natural hazards · Twin Grove

Twin Grove, IL natural hazards

Most of the natural-hazard damage FEMA expects in Twin Grove 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 Twin Grove?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Twin Grove to be higher than in 50% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding37%Cold waves24%Drought20%Tornadoes9%Everything else11%

By hazard

What Twin Grove faces

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

Inland flooding

37% of expected damage

Above average · higher than 63% of U.S. places

Recorded about once a year in the area

Cold waves

24% of expected damage

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

Recorded about 5 times a year in the area

Drought

20% of expected damage

Recorded about 4 times a year in the area

Tornadoes

9% of expected damage

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

Recorded about once every 5 years in the area

Lower here

HurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong 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 Twin Grove flood?

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

of homes in flood zones
are insured

of all homes
are insured

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

Insurance rates: McLean County.

Disasters that hit Twin Grove

Federal disasters declared here

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

Brought FEMA money into Twin GroveDeclared for McLean County only

McLean County has had 9 natural disasters declared since 1953, most often winter storms and ice storms.

Around Twin Grove

Twin Grove and the towns around it

Very lowLowModerateHighVery high

Twin Grovemostly inland floodingModerate

Dalemostly inland floodingModerate

Bloomingtonmostly inland floodingModerate

Bloomington Citymostly inland floodingModerate

Dry Grovemostly 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. Twin Grove 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 Twin Grove’s own flood-insurance community; household aid to the registrant’s city; repair grants to Twin Grove. 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.