Is Dallas County, AL in a flood zone?
FEMA's National Risk Index puts Dallas County's flood hazard at the 75.2th percentile nationally — a middling flood hazard by national standards — 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. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in Dallas County
7.7% of the homes FEMA requires to carry flood insurance in Dallas County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 179 policies against 2,312 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Dallas County, not just the ones FEMA mandates, 1.1% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
How Dallas County compares nationally
Dallas County sits at rank 815 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1304 of 3144 by population (1 is biggest). About 35,545 people live in Dallas County, Alabama, spread over 978.741 square miles.
Checking a specific address in Dallas County
Across all of Dallas County's 16,955 residential structures, 192 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 Dallas 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.