How much flood risk does Webster County actually carry?
Webster County lands at the 43.4th 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 4.4 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in Webster County
1.3% of the homes FEMA requires to carry flood insurance in Webster County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 1 policies against 78 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Webster County, not just the ones FEMA mandates, 0.1% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Where Webster County ranks
Webster County sits at rank 1839 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1150 of 3144 by population (1 is biggest). Webster County, Missouri covers 592.563 square miles and counts roughly 42,041 residents.
What to do next if you own or are buying in Webster County
Across all of Webster County's 16,829 residential structures, 9 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 Webster 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.