Tishomingo County, MS: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Tishomingo County scores at the 30.8th percentile for flood hazard, rated "Very Low" — among the lowest flood hazard in the country. The hazard here is 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. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Tishomingo County's flood-insurance compliance gap
Homes with a federally backed mortgage inside Tishomingo 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, 5% of them do — 10 active policies against 201 structures FEMA counts in that zone, leaving a real compliance gap. Looking beyond the mandated zone, 0.2% of all residential structures in Tishomingo County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Tishomingo County ranks
Among the 3144 US counties FEMA scores for flood hazard, Tishomingo County ranks 2233 — 1 being the highest hazard nationally — and 1899 by population among all 3144 counties covered here, where 1 is the largest. Tishomingo County, Mississippi covers 424.297 square miles and counts roughly 18,553 residents.
Your street may differ from Tishomingo County's average
Across all of Tishomingo County's 9,371 residential structures, 16 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Tishomingo County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. If you're unsure why any of this insurance requirement exists at all, the SFHA explainer covers it from first principles.