Is Marion County, GA in a flood zone?
FEMA's National Risk Index puts Marion County's flood hazard at the 12.8th percentile nationally — among the lowest flood hazard in the country — driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 4 years. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Who actually carries the flood insurance FEMA requires
Homes with a federally backed mortgage inside Marion 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, 7.1% of them do — 1 active policies against 14 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Marion County, not just the ones FEMA mandates, 0% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Marion County against the rest of the country
Marion County sits at rank 2766 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2602 of 3144 by population (1 is biggest). Marion County, Georgia covers 365.721 square miles and counts roughly 7,635 residents.
What to do next if you own or are buying in Marion County
Across all of Marion County's 3,825 residential structures, 1 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 Marion 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.