How much flood risk does Clark County actually carry?
Clark County lands at the 38.1th percentile of FEMA's National Risk Index for flooding, "Relatively Low" territory — below the national norm for flood hazard — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about 3.4 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Who actually carries the flood insurance FEMA requires
10.2% of the homes FEMA requires to carry flood insurance in Clark County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 42 policies against 411 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Clark County, not just the ones FEMA mandates, 0.6% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Clark County compares nationally
Clark County sits at rank 2011 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1774 of 3144 by population (1 is biggest). About 20,920 people live in Clark County, Arkansas, spread over 865.971 square miles.
Checking a specific address in Clark County
45 of Clark County's 8,239 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 Clark 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.