How much flood risk does Houston County actually carry?
Houston County lands at the 40th 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 1.1 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.
Mandatory flood insurance compliance in Houston County
Out of 235 homes FEMA counts inside Houston County's mapped flood zone, 15 carry the flood policy federal law requires there — 6.4% compliance, short of full coverage. Across all residential structures in Houston 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.
Where Houston County ranks
Houston County sits at rank 1948 of 3144 counties on FEMA's flood hazard scale (1 is worst) and rank 1712 of 3144 by population (1 is biggest). Houston County, Texas is home to about 22,197 people across 1,230.997 square miles of land.
Your street may differ from Houston County's average
65 of Houston County's 8,197 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 Houston 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.