St. Helena, CA natural hazards
Most of the natural-hazard damage FEMA expects in St. Helena comes from inland flooding, and overall the risk is very high for a U.S. community. Flood insurance has paid 35 claims here since 1982. 5 federal disasters brought FEMA money into town.
FEMA National Risk Index, December 2025 · OpenFEMA claims, aid & declarationsHow exposed is St. Helena?
FEMA expects yearly storm and flood damage to homes and buildings in St. Helena to be higher than in 97% of U.S. communities, mostly from inland flooding and earthquakes.
What St. Helena faces
Each hazard’s share of the damage FEMA expects here, and how that compares with the rest of the country.
Inland flooding
Earthquakes
Drought
Lower here
Not a risk here
Does St. Helena flood?
Every paid claim on a federal flood insurance policy in St. Helena, from FEMA’s records.
Biggest named events
- Pineapple Express - Southern: 1 claim, $6K
Homes that flooded again and again
■ FEMA “severe repetitive loss” (2) ■ flooded 2+ times
are insured
are insured
What’s been done with FEMA grants
5 federal disasters brought FEMA money here
Disasters the President declared that paid out in St. Helena itself: aid to households, or repair grants to the City of St. Helena.
Wildfires
Severe Winter Storms, Flooding, Landslides, and Mudslides
Wildfires
Earthquake
Severe Storms, Flooding, Mudslides, and Landslides
How to read this page
FEMA’s expected losses across St. Helena total about $11.8M a year, counting buildings, people and crops.
Sources: FEMA National Risk Index (December 2025); OpenFEMA: NFIP redacted claims, multiple-loss properties, community status book and residential penetration rates, housing assistance (owners and renters), public assistance funded projects, hazard mitigation properties and disaster declarations. Census tracts: U.S. Census Bureau.