How much flood risk does Worth County actually carry?
Worth County lands at the 10.7th 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 1.1 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Worth County's flood-insurance compliance gap
Out of 36 homes FEMA counts inside Worth County's mapped flood zone, 1 carry the flood policy federal law requires there — 2.8% compliance, short of full coverage. Across all residential structures in Worth 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.
How Worth County compares nationally
Worth County sits at rank 2827 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2637 of 3144 by population (1 is biggest). About 7,307 people live in Worth County, Iowa, spread over 400.123 square miles.
What to do next if you own or are buying in Worth County
Across all of Worth County's 3,482 residential structures, 4 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 Worth 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.