How much flood risk does Polk County actually carry?
Polk County lands at the 66th percentile of FEMA's National Risk Index for flooding, "Relatively Low" territory — below the national norm for flood hazard — 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 1 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Polk County's flood-insurance compliance gap
Homes with a federally backed mortgage inside Polk County's mapped high-risk flood zone (the Special Flood Hazard Area, or SFHA) are legally required to carry an NFIP flood policy. In practice, 13.2% of them do — 89 active policies against 673 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Polk County, not just the ones FEMA mandates, 0.6% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Polk County against the rest of the country
Polk County sits at rank 1116 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1102 of 3144 by population (1 is biggest). About 44,610 people live in Polk County, Georgia, spread over 310.34 square miles.
Your street may differ from Polk County's average
FEMA counts 16,847 residential structures in Polk County overall, 104 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Polk 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.