Natural disaster risk in California

How disaster-prone is California?

California (CA) sits at a high level of federally recognized natural-disaster risk, with 130 FEMA disaster declarations on record — including 19 Major Disaster declarations (DR) that triggered full federal individual and public assistance. The dominant declaration type is Fire, followed by Severe Storm (7), Flood (4), Hurricane (2). Declaration counts at the state level reflect the cumulative federal footprint: large multi-county events count once per state, but repeat hazard patterns across decades are visible in the breakdown below.

NOAA's Storm Events Database adds the near-term severe-weather lens. Between 2015 and 2025, California recorded 25,383 individual storm events, causing 787 fatalities and 1,445 injuries, with combined property and crop damage estimated at $22.4B. The most frequent event types in the state are High Wind (4,403 events), Flood (3,518 events), Heavy Snow (1,916 events). Across the state's 58 analyzed counties, FEMA's National Risk Index flags 31 as high-risk, with an average county composite risk score of 88.7/100.

NFIP claims data is limited or absent for this state in the current extract, which usually indicates low flood-policy penetration rather than zero flood risk. The highest-Expected-Annual-Loss hazard across the state is Earthquake, estimated at $14.9B annually. Drill into individual counties for localized risk, read FEMA's hazard-specific briefings, and review insurance and flood-zone designations — state-level averages can mask sharp county-to-county differences in exposure and resilience.