How much flood risk does Tyler County actually carry?
Tyler County lands at the 59.1th percentile of FEMA's National Risk Index for flooding, "Relatively Low" territory — below the national norm for flood hazard — with the hazard driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 1 years. That's a county-wide figure, not a per-address one — FEMA's parcel maps are a live lookup, not a bulk file.
Mandatory flood insurance compliance in Tyler County
10.4% of the homes FEMA requires to carry flood insurance in Tyler County — those inside the mapped Special Flood Hazard Area — actually have a policy in force: 58 policies against 557 mandated structures, which means a meaningful share of legally-required coverage simply isn't there. Across all residential structures in Tyler 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.
Tyler County against the rest of the country
Tyler County sits at rank 1346 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1798 of 3144 by population (1 is biggest). Tyler County, Texas is home to about 20,560 people across 924.39 square miles of land.
Your street may differ from Tyler County's average
Across all of Tyler County's 10,193 residential structures, 116 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 Tyler 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.