Bloomington, Illinois: natural disaster risk
How exposed Bloomington is to floods, storms and other hazards, from FEMA and NOAA records for McLean County.
Bloomington is a city of 78,907 people in McLean County, Illinois. FEMA's National Risk Index rates McLean County relatively moderate for natural hazards overall, about average for the US. The costliest hazards there are inland flooding, cold wave and tornado, with about $81.3 million in expected losses a year across the county. The weather service has logged 794 storm reports in the county since 1950, including 123 tornadoes and 52 floods. About 0.2% of homes in the county carry federal flood insurance.
Risk figures are for McLean County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Bloomington
Full McLean County report ›- Check the FEMA flood map for your address, and ask the seller or landlord about past flooding.
- Price a flood policy now. Most new federal policies take 30 days to start.
- Insulate pipes in outside walls, crawl spaces and garages.
- Know how to shut off the main water valve.
- Pick a shelter spot: a basement, or an inside room on the lowest floor with no windows.
- Turn on emergency alerts on your phone and keep a weather radio.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Inland flooding | $33M | |
| Cold wave | $26M | |
| Tornado | $9M | |
| Earthquake | $3M | |
| Drought | $3M | |
| Heat wave | $3M | |
| Hail | $2M | |
| Strong wind | $2M | |
| Lightning | $386K | |
| Winter weather | $358K | |
| Ice storm | $302K | |
| Hurricane | $22K |
Homes in Bloomington
Older homes and mobile homes usually take more damage in storms, floods and earthquakes. Ask about roof age, flood history and retrofits before you buy or rent.
Strongest tornadoes in McLean County
More cities in McLean County
Common questions about Bloomington
Is Bloomington safe from natural disasters?
Bloomington is in McLean County, which FEMA's National Risk Index rates relatively moderate overall, about average for the US. The biggest hazards are inland flooding, cold wave, tornado. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Bloomington?
By expected yearly losses in McLean County, the top hazards are inland flooding (Moderate), cold wave (High), tornado (Moderate). McLean County has been part of 9 federal disaster or emergency declarations for natural events.
Does Bloomington get tornadoes?
Yes. NOAA records list 123 tornadoes in McLean County since 1950; the strongest was an F3 tornado on April 19, 1996 near Mc Lean. FEMA rates tornado risk in the county moderate.
Do I need flood insurance in Bloomington?
Standard home insurance does not cover floods. In McLean County, about 0.2% of homes have federal flood insurance, and FEMA rates inland flooding risk moderate. Check the FEMA flood map for your address and get a quote even outside a high-risk zone.