Is Abbeville County, SC in a flood zone?
FEMA's National Risk Index puts Abbeville County's flood hazard at the 37.6th percentile nationally — 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 2 years. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Abbeville County's flood-insurance compliance gap
31.6% of the homes FEMA requires to carry flood insurance in Abbeville County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 6 policies against 19 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Abbeville County, not just the ones FEMA mandates, 0.1% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Abbeville County compares nationally
Abbeville County sits at rank 2026 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1632 of 3144 by population (1 is biggest). Abbeville County, South Carolina is home to about 24,607 people across 491.195 square miles of land.
Your street may differ from Abbeville County's average
Across all of Abbeville County's 9,597 residential structures, 9 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Abbeville 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.