Clark County, WI flood risk explained
Flood hazard in Clark County sits at the 69.1th national percentile, below the national norm for flood hazard; driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 1 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Mandatory flood insurance compliance in Clark County
Out of 161 homes FEMA counts inside Clark County's mapped flood zone, 8 carry the flood policy federal law requires there — 5% compliance, short of full coverage. Looking beyond the mandated zone, 0.1% of all residential structures in Clark County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
How Clark County compares nationally
Among the 3144 US counties FEMA scores for flood hazard, Clark County ranks 1013 — 1 being the highest hazard nationally — and 1318 by population among all 3144 counties covered here, where 1 is the largest. Clark County, Wisconsin covers 1,209.698 square miles and counts roughly 34,801 residents.
Checking a specific address in Clark County
17 of Clark County's 14,781 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Clark 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.