Clarion County, PA flood risk explained
Flood hazard in Clarion County sits at the 52.2th 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 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.
Clarion County's flood-insurance compliance gap
12.4% of the homes FEMA requires to carry flood insurance in Clarion County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 19 policies against 153 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Looking beyond the mandated zone, 0.3% of all residential structures in Clarion County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Clarion County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Clarion County ranks 1566 — 1 being the highest hazard nationally — and 1267 by population among all 3144 counties covered here, where 1 is the largest. Clarion County, Pennsylvania is home to about 36,855 people across 600.836 square miles of land.
Your street may differ from Clarion County's average
Across all of Clarion County's 14,702 residential structures, 37 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Clarion 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.