State + disaster type
Biological history in California
California has 116 county-level biological declarations across 58 counties. Alameda County leads with 2 declarations. Total tracked FEMA obligations for biological events in this state: $15.6B.
This page shows every California county in California that has at least one FEMA biological declaration on record, ranked by how many times that hazard type triggered federal aid. Counties near the top of this list have recurring exposure to biological events — useful context for anyone evaluating property risk, insurance needs, or emergency planning in the area.
For the full national view of biological declarations across all states, see the biological disaster type page. For all hazard types in California, see the California state page.
Biological in California