How much flood risk does Coahoma County actually carry?
Coahoma County lands at the 46.3th 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 1 years. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in Coahoma County
Out of 200 homes FEMA counts inside Coahoma County's mapped flood zone, 69 carry the flood policy federal law requires there — 34.5% compliance, short of full coverage. Across all residential structures in Coahoma County, not just the ones FEMA mandates, 1.3% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Coahoma County ranks
Coahoma County sits at rank 1748 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1823 of 3144 by population (1 is biggest). Coahoma County, Mississippi covers 553.102 square miles and counts roughly 20,105 residents.
What to do next if you own or are buying in Coahoma County
107 of Coahoma County's 8,555 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 Coahoma 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.