Genesee County, NY flood risk explained
Flood hazard in Genesee County sits at the 71.1th 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. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Genesee County's flood-insurance compliance gap
FEMA hasn't published a residential structure count for Genesee County's mapped flood zone, so a reliable mandatory-compliance percentage can't be computed here — see the data quality guide for why this gap exists for roughly a quarter of US counties. Looking beyond the mandated zone, 1% of all residential structures in Genesee County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Genesee County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Genesee County ranks 947 — 1 being the highest hazard nationally — and 918 by population among all 3144 counties covered here, where 1 is the largest. Genesee County, New York is home to about 57,604 people across 492.976 square miles of land.
Your street may differ from Genesee County's average
Across all of Genesee County's 21,168 residential structures, 208 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Genesee County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Genesee County's compliance figure is one of the ones affected by FEMA's incomplete denominator data — the data quality guide explains what that means and how many counties it touches.