Is Washington County, TX in a flood zone?
FEMA's National Risk Index puts Washington County's flood hazard at the 72.7th 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 1.3 times a year. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Washington County's flood-insurance compliance gap
21% of the homes FEMA requires to carry flood insurance in Washington County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 42 policies against 200 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Washington County, not just the ones FEMA mandates, 1.4% carry an NFIP policy — most flood damage nationally happens outside the mapped high-risk zone, so that broader number matters too.
Washington County against the rest of the country
Washington County sits at rank 897 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1244 of 3144 by population (1 is biggest). Washington County, Texas is home to about 37,810 people across 604.196 square miles of land.
Your street may differ from Washington County's average
180 of Washington County's 13,039 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 Washington 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.