Corvallis, Oregon: natural disaster risk
How exposed Corvallis is to floods, storms and other hazards, from FEMA and NOAA records for Benton County.
Corvallis is a city of 59,960 people in Benton County, Oregon. FEMA's National Risk Index rates Benton County relatively moderate for natural hazards overall, about average for the US. The costliest hazards there are earthquake, inland flooding and heat wave, with about $63.8 million in expected losses a year across the county. The weather service has logged 45 storm reports in the county since 1982, including 2 tornadoes and 25 floods. About 2% of homes in the county carry federal flood insurance.
Risk figures are for Benton County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Corvallis
Full Benton County report ›- Ask whether an older house is bolted to its foundation.
- Consider separate earthquake insurance where risk is high.
- 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.
- Check that cooling works before summer.
- Know where the nearest cooling center is.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Earthquake | $41M | |
| Inland flooding | $19M | |
| Heat wave | $2M | |
| Landslide | $503K | |
| Lightning | $203K | |
| Cold wave | $193K | |
| Ice storm | $138K | |
| Strong wind | $133K | |
| Tornado | $125K | |
| Winter weather | $66K | |
| Wildfire | $26K | |
| Hail | $21K |
Homes in Corvallis
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 Benton County
Common questions about Corvallis
Is Corvallis safe from natural disasters?
Corvallis is in Benton County, which FEMA's National Risk Index rates relatively moderate overall, about average for the US. The biggest hazards are earthquake, inland flooding, 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 Corvallis?
By expected yearly losses in Benton County, the top hazards are earthquake (Moderate), inland flooding (Moderate), heat wave (Moderate). Benton County has been part of 13 federal disaster or emergency declarations for natural events.
Does Corvallis get tornadoes?
Yes. NOAA records list 2 tornadoes in Benton County since 1950; the strongest was an F0 tornado on June 1, 1997 near Albany. FEMA rates tornado risk in the county very low.
Do I need flood insurance in Corvallis?
Standard home insurance does not cover floods. In Benton County, about 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.