Warren County, MS flood risk explained
Flood hazard in Warren County sits at the 72.8th national percentile, below the national norm for flood hazard; driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 1.8 times a year. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Who actually carries the flood insurance FEMA requires
Homes with a federally backed mortgage inside Warren 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, 17.3% of them do — 298 active policies against 1,722 structures FEMA counts in that zone, leaving a real compliance gap. Looking beyond the mandated zone, 1.7% of all residential structures in Warren County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Warren County ranks
Among the 3144 US counties FEMA scores for flood hazard, Warren County ranks 894 — 1 being the highest hazard nationally — and 1149 by population among all 3144 counties covered here, where 1 is the largest. Warren County, Mississippi is home to about 42,105 people across 588.536 square miles of land.
Checking a specific address in Warren County
FEMA counts 19,265 residential structures in Warren County overall, 321 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Warren 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.