Grand Junction, Colorado: natural disaster risk
How exposed Grand Junction is to floods, storms and other hazards, from FEMA and NOAA records for Mesa County.
Grand Junction is a city of 68,142 people in Mesa County, Colorado. FEMA's National Risk Index rates Mesa County relatively low for natural hazards overall, lower than most of the US. The costliest hazards there are inland flooding, earthquake and lightning, with about $34.7 million in expected losses a year across the county. The weather service has logged 444 storm reports in the county since 1962, including 10 tornadoes and 103 floods. About 0.3% of homes in the county carry federal flood insurance.
Risk figures are for Mesa County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Grand Junction
Full Mesa 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.
- Ask whether an older house is bolted to its foundation.
- Consider separate earthquake insurance where risk is high.
- Go indoors when you hear thunder.
- Use surge protectors for electronics.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Inland flooding | $22M | |
| Earthquake | $3M | |
| Lightning | $3M | |
| Landslide | $2M | |
| Avalanche | $2M | |
| Wildfire | $1M | |
| Drought | $656K | |
| Heat wave | $568K | |
| Cold wave | $445K | |
| Tornado | $199K | |
| Winter weather | $123K | |
| Strong wind | $81K |
Homes in Grand Junction
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 Mesa County
Other cities in Colorado
All ›Common questions about Grand Junction
Is Grand Junction safe from natural disasters?
Grand Junction is in Mesa County, which FEMA's National Risk Index rates relatively low overall, lower than most of the US. The biggest hazards are inland flooding, earthquake, lightning. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Grand Junction?
By expected yearly losses in Mesa County, the top hazards are inland flooding (Moderate), earthquake (Low), lightning (Very High). Mesa County has been part of 6 federal disaster or emergency declarations for natural events.
Does Grand Junction get tornadoes?
Yes. NOAA records list 10 tornadoes in Mesa County since 1950; the strongest was an F1 tornado on September 8, 2000 near Whitewater. FEMA rates tornado risk in the county very low.
Do I need flood insurance in Grand Junction?
Standard home insurance does not cover floods. In Mesa County, about 0.3% 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.