Natural hazards · Big Grove

Big Grove, IL natural hazards

Most of the natural-hazard damage FEMA expects in Big Grove comes from inland flooding, and overall the risk is moderate for a U.S. community. 2 federal disasters brought FEMA money into town.

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

Expected damage

How exposed is Big Grove?

Moderate

vs. U.S. communities

FEMA expects yearly storm and flood damage to homes and buildings in Big Grove to be higher than in 53% of U.S. communities, mostly from inland flooding and cold waves.

Inland flooding49%Cold waves29%Tornadoes15%Everything else8%

By hazard

What Big Grove faces

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

Inland flooding

49% of expected damage

Above average · higher than 73% of U.S. places

Recorded about once a year in the area

Cold waves

29% of expected damage

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

Recorded about 5 times a year in the area

Tornadoes

15% of expected damage

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

Recorded about once every 11 years in the area

Lower here

HurricanesHailIce stormsWinter weatherHeat wavesWildfireEarthquakesLandslidesStrong 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 Big Grove flood?

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

of homes in flood zones
are insured

of all homes
are insured

No community discount. Big 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: Kendall County.

Disasters that hit Big Grove

2 federal disasters brought FEMA money here

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

Brought FEMA money into Big GroveDeclared for Kendall County only

2000

Illinois Winter Snow Storms

$3K to the Township of Big Grove for repairs

1999

Il-Winter Storm 1/1/99

$6K to the Township of Big Grove for repairs

Kendall County has had 11 natural disasters declared since 1953, most often winter storms and floods.

Around Big Grove

Big Grove and the towns around it

Very lowLowModerateHighVery high

Nettle Creekmostly inland floodingHigh

Big Grovemostly inland floodingModerate

Lisbonmostly inland floodingModerate

Missionmostly inland floodingModerate

Foxmostly 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. Big 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 Big Grove’s own flood-insurance community; household aid to the registrant’s city; repair grants to the Township of Big 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.