How much flood risk does Thomas County actually carry?
Thomas County lands at the 57.3th 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 2 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 Thomas 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, 15.5% of them do — 68 active policies against 440 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Thomas 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.
Thomas County against the rest of the country
Thomas County sits at rank 1404 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1069 of 3144 by population (1 is biggest). About 46,054 people live in Thomas County, Georgia, spread over 544.637 square miles.
What to do next if you own or are buying in Thomas County
124 of Thomas County's 19,664 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 Thomas 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.