How much flood risk does Coosa County actually carry?
Coosa County lands at the 34.3th 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 7 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Coosa County's flood-insurance compliance gap
8.4% of the homes FEMA requires to carry flood insurance in Coosa County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 11 policies against 131 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Coosa County, not just the ones FEMA mandates, 0.3% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Coosa County compares nationally
Coosa County sits at rank 2128 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2389 of 3144 by population (1 is biggest). About 10,291 people live in Coosa County, Alabama, spread over 650.909 square miles.
What to do next if you own or are buying in Coosa County
Across all of Coosa County's 5,569 residential structures, 18 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Coosa 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.