Twin Falls, Idaho: natural disaster risk
How exposed Twin Falls is to floods, storms and other hazards, from FEMA and NOAA records for Twin Falls County.
Twin Falls is a city of 54,164 people in Twin Falls County, Idaho. FEMA's National Risk Index rates Twin Falls County relatively low for natural hazards overall, lower than most of the US. The costliest hazards there are inland flooding, wildfire and heat wave, with about $16.6 million in expected losses a year across the county. The weather service has logged 143 storm reports in the county since 1957, including 12 tornadoes and 10 floods. About 0.2% of homes in the county carry federal flood insurance.
Risk figures are for Twin Falls County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Twin Falls
Full Twin Falls 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.
- Clear dry plants and debris within 5 feet of the house.
- Get home insurance quotes early; availability varies by area.
- Check that cooling works before summer.
- Know where the nearest cooling center is.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Inland flooding | $8M | |
| Wildfire | $3M | |
| Heat wave | $2M | |
| Earthquake | $1M | |
| Winter weather | $779K | |
| Cold wave | $770K | |
| Strong wind | $414K | |
| Lightning | $304K | |
| Hail | $140K | |
| Ice storm | $128K | |
| Tornado | $127K | |
| Landslide | $95K |
Homes in Twin Falls
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 Twin Falls County
Common questions about Twin Falls
Is Twin Falls safe from natural disasters?
Twin Falls is in Twin Falls County, which FEMA's National Risk Index rates relatively low overall, lower than most of the US. The biggest hazards are inland flooding, wildfire, heat wave. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Twin Falls?
By expected yearly losses in Twin Falls County, the top hazards are inland flooding (Low), wildfire (Moderate), heat wave (Moderate). Twin Falls County has been part of 2 federal disaster or emergency declarations for natural events.
Does Twin Falls get tornadoes?
Yes. NOAA records list 12 tornadoes in Twin Falls County since 1950; the strongest was an F1 tornado on September 8, 1985. FEMA rates tornado risk in the county very low.
Do I need flood insurance in Twin Falls?
Standard home insurance does not cover floods. In Twin Falls County, about 0.2% of homes have federal flood insurance, and FEMA rates inland flooding risk low. Check the FEMA flood map for your address and get a quote even outside a high-risk zone.