How much flood risk does Cook County actually carry?
Cook County lands at the 27th percentile of FEMA's National Risk Index for flooding, "Very Low" territory — among the lowest flood hazard in the country — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 5 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Cook County's flood-insurance compliance gap
Out of 876 homes FEMA counts inside Cook County's mapped flood zone, 54 carry the flood policy federal law requires there — 6.2% compliance, short of full coverage. Across all residential structures in Cook County, not just the ones FEMA mandates, 0.9% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Cook County against the rest of the country
Cook County sits at rank 2343 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1935 of 3144 by population (1 is biggest). Cook County, Georgia is home to about 17,984 people across 228.469 square miles of land.
Your street may differ from Cook County's average
74 of Cook County's 7,833 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Cook County's numbers. The guide to what the Special Flood Hazard Area actually means explains why the mandatory-insurance rule exists and who it applies to.