Is Wilson County, TN in a flood zone?
FEMA's National Risk Index puts Wilson County's flood hazard at the 82.1th percentile nationally — a middling flood hazard by national standards — driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 2.6 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Wilson County's flood-insurance compliance gap
Out of 1,029 homes FEMA counts inside Wilson County's mapped flood zone, 368 carry the flood policy federal law requires there — 35.8% compliance, short of full coverage. Across all residential structures in Wilson County, not just the ones FEMA mandates, 1.2% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Wilson County ranks
Wilson County sits at rank 588 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 412 of 3144 by population (1 is biggest). Wilson County, Tennessee covers 571.088 square miles and counts roughly 169,948 residents.
What to do next if you own or are buying in Wilson County
FEMA counts 52,320 residential structures in Wilson County overall, 611 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 Wilson 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.