Is Marengo County, AL in a flood zone?
FEMA's National Risk Index puts Marengo County's flood hazard at the 50.6th 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. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Who actually carries the flood insurance FEMA requires
12.5% of the homes FEMA requires to carry flood insurance in Marengo County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 58 policies against 465 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Marengo County, not just the ones FEMA mandates, 0.8% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Marengo County against the rest of the country
Marengo County sits at rank 1617 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1903 of 3144 by population (1 is biggest). About 18,512 people live in Marengo County, Alabama, spread over 976.898 square miles.
What to do next if you own or are buying in Marengo County
66 of Marengo County's 8,461 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
More on how this number was built
The methodology guide shows exactly which FEMA and Census tables feed Marengo 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.