DeWitt County, TX flood risk explained
Flood hazard in DeWitt County sits at the 89.2th national percentile, 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 3.6 times a year. County-wide, not parcel-specific: FEMA's real flood-zone map is queried live, never shipped as a download.
Mandatory flood insurance compliance in DeWitt County
Homes with a federally backed mortgage inside DeWitt County's mapped high-risk flood zone (the Special Flood Hazard Area, or SFHA) are legally required to carry an NFIP flood policy. In practice, 14.8% of them do — 99 active policies against 667 structures FEMA counts in that zone, leaving a real compliance gap. Looking beyond the mandated zone, 2.4% of all residential structures in DeWitt County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
How DeWitt County compares nationally
Among the 3144 US counties FEMA scores for flood hazard, DeWitt County ranks 359 — 1 being the highest hazard nationally — and 1813 by population among all 3144 counties covered here, where 1 is the largest. DeWitt County, Texas is home to about 20,252 people across 908.976 square miles of land.
Checking a specific address in DeWitt County
Across all of DeWitt County's 8,467 residential structures, 200 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where DeWitt County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. If you're unsure why any of this insurance requirement exists at all, the SFHA explainer covers it from first principles.