How much flood risk does Calhoun County actually carry?
Calhoun County lands at the 25.3th percentile of FEMA's National Risk Index for flooding, "Very Low" territory — among the lowest flood hazard in the country — 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 1 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Calhoun County's flood-insurance compliance gap
8% of the homes FEMA requires to carry flood insurance in Calhoun County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 29 policies against 361 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Calhoun 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.
Calhoun County against the rest of the country
Calhoun County sits at rank 2393 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2237 of 3144 by population (1 is biggest). Calhoun County, Mississippi is home to about 12,754 people across 586.573 square miles of land.
Your street may differ from Calhoun County's average
Across all of Calhoun County's 5,979 residential structures, 33 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 Calhoun 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.