How much flood risk does Keokuk County actually carry?
Keokuk County lands at the 29.6th 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 1.3 times a year. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Mandatory flood insurance compliance in Keokuk County
0.2% of the homes FEMA requires to carry flood insurance in Keokuk County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 3 policies against 1,295 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Keokuk County, not just the ones FEMA mandates, 0% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Keokuk County against the rest of the country
Keokuk County sits at rank 2267 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 2418 of 3144 by population (1 is biggest). About 9,855 people live in Keokuk County, Iowa, spread over 579.175 square miles.
Your street may differ from Keokuk County's average
Across all of Keokuk County's 13,720 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 Keokuk 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.