State + disaster type
Biological history in Illinois
Illinois has 204 county-level biological declarations across 102 counties. Adams County leads with 2 declarations. Total tracked FEMA obligations for biological events in this state: $2.4B.
This page shows every Illinois county in Illinois 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 Illinois, see the Illinois state page.
Biological in Illinois