Spring Valley CDP (San Diego County), California: natural disaster risk
How exposed Spring Valley CDP (San Diego County) is to floods, storms and other hazards, from FEMA and NOAA records for San Diego County.
Spring Valley CDP (San Diego County) is a city of 31,969 people in San Diego County, California. FEMA's National Risk Index rates San Diego County very high for natural hazards overall, higher than most of the US. The costliest hazards there are inland flooding, wildfire and earthquake, with about $1.5 billion in expected losses a year across the county. The weather service has logged 1,058 storm reports in the county since 1955, including 27 tornadoes and 495 floods. About 0.7% of homes in the county carry federal flood insurance.
Risk figures are for San Diego County. FEMA National Risk Index December 2025; NOAA Storm Events; US Census Bureau ACS 2020 to 2024. Updated November 6, 2026.
Top risks in Spring Valley CDP (San Diego County)
Full San Diego 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.
- Ask whether an older house is bolted to its foundation.
- Consider separate earthquake insurance where risk is high.
All hazards
| Hazard | Rating | A year |
|---|---|---|
| Inland flooding | $648M | |
| Wildfire | $430M | |
| Earthquake | $426M | |
| Heat wave | $24M | |
| Landslide | $3M | |
| Tornado | $2M | |
| Tsunami | $2M | |
| Coastal flooding | $1M | |
| Lightning | $829K | |
| Hail | $825K | |
| Strong wind | $642K | |
| Drought | $299K |
Homes in Spring Valley CDP (San Diego County)
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 San Diego County
More cities in San Diego County
Other cities in California
All ›Common questions about Spring Valley CDP (San Diego County)
Is Spring Valley CDP (San Diego County) safe from natural disasters?
Spring Valley CDP (San Diego County) is in San Diego County, which FEMA's National Risk Index rates very high overall, higher than most of the US. The biggest hazards are inland flooding, wildfire, earthquake. No place is free of risk, so check the flood map and insurance for any home you consider.
What natural disasters happen in Spring Valley CDP (San Diego County)?
By expected yearly losses in San Diego County, the top hazards are inland flooding (Very High), wildfire (Very High), earthquake (High). San Diego County has been part of 49 federal disaster or emergency declarations for natural events.
Does Spring Valley CDP (San Diego County) get tornadoes?
Yes. NOAA records list 27 tornadoes in San Diego County since 1950; the strongest was an F1 tornado on March 19, 1991. FEMA rates tornado risk in the county low.
Do I need flood insurance in Spring Valley CDP (San Diego County)?
Standard home insurance does not cover floods. In San Diego County, about 0.7% of homes have federal flood insurance, and FEMA rates inland flooding risk very high. Check the FEMA flood map for your address and get a quote even outside a high-risk zone.