Jasper County, SC flood risk explained
Flood hazard in Jasper County sits at the 59th national percentile, below the national norm for flood hazard; driven by coastal storm surge rather than inland rivers — FEMA's model puts a surge event here at about 3.6 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Jasper County's flood-insurance compliance gap
Homes with a federally backed mortgage inside Jasper County's mapped high-risk flood zone (the Special Flood Hazard Area, or SFHA) are legally required to carry an NFIP flood policy. In practice, 60.4% of them do — 696 active policies against 1,153 structures FEMA counts in that zone, leaving a real compliance gap. Looking beyond the mandated zone, 17.8% of all residential structures in Jasper County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Jasper County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Jasper County ranks 1348 — 1 being the highest hazard nationally — and 1301 by population among all 3144 counties covered here, where 1 is the largest. Jasper County, South Carolina is home to about 35,618 people across 655.135 square miles of land.
Checking a specific address in Jasper County
FEMA counts 10,297 residential structures in Jasper County overall, 1,831 of them carrying some form of NFIP coverage — but a lender or insurer cares about one parcel, not that county total.
Where Jasper County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Jasper County's coastal exposure is covered in the coastal vs. inland flood risk guide, including how storm surge risk differs from river flooding.