Wyandotte County, KS Flood Zone & Flood Risk Data
Wyandotte County, KS: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Wyandotte County scores at the 84.7th percentile for flood hazard, rated "Relatively Moderate", a middling flood hazard by national standards. The hazard here is driven by inland rivers and flash flooding rather than the coast, FEMA's model puts a flood event here at about 1.5 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.
Wyandotte County's flood-insurance compliance gap
15.4% of the homes FEMA requires to carry flood insurance in Wyandotte County, those inside the mapped Special Flood Hazard Area, actually have a policy in force: 28 policies against 182 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Looking beyond the mandated zone, 0.1% of all residential structures in Wyandotte County carry flood coverage voluntarily or otherwise, relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Wyandotte County ranks
Among the 3144 US counties FEMA scores for flood hazard, Wyandotte County ranks 503, 1 being the highest hazard nationally, and 414 by population among all 3144 counties covered here, where 1 is the largest. Wyandotte County, Kansas covers 151.638 square miles and counts roughly 169,418 residents.
Checking a specific address in Wyandotte County
60 of Wyandotte County's 53,188 residential structures carry flood coverage of some kind, per FEMA's latest count, useful context, not a substitute for checking one parcel.
Where Wyandotte County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. If you're unsure why any of this insurance requirement exists at all, the SFHA explainer covers it from first principles.