Is Cooper County, MO in a flood zone?
FEMA's National Risk Index puts Cooper County's flood hazard at the 29.9th percentile nationally — among the lowest flood hazard in the country — driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 4.6 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 Cooper County
Homes with a federally backed mortgage inside Cooper County's mapped high-risk flood zone (the Special Flood Hazard Area, or SFHA) are legally required to carry an NFIP flood policy. In practice, 3.5% of them do — 5 active policies against 144 structures FEMA counts in that zone, leaving a real compliance gap. Across all residential structures in Cooper 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 Cooper County compares nationally
Cooper County sits at rank 2261 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1969 of 3144 by population (1 is biggest). Cooper County, Missouri covers 564.746 square miles and counts roughly 17,122 residents.
What to do next if you own or are buying in Cooper County
5 of Cooper County's 9,015 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 Cooper 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.