Blanco County, TX flood risk explained
Flood hazard in Blanco County sits at the 51.4th national percentile, 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 2.4 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 Blanco County
FEMA hasn't published a residential structure count for Blanco County's mapped flood zone, so a reliable mandatory-compliance percentage can't be computed here — see the data quality guide for why this gap exists for roughly a quarter of US counties. Looking beyond the mandated zone, 1.4% of all residential structures in Blanco County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Blanco County ranks
Among the 3144 US counties FEMA scores for flood hazard, Blanco County ranks 1594 — 1 being the highest hazard nationally — and 2202 by population among all 3144 counties covered here, where 1 is the largest. Blanco County, Texas is home to about 13,358 people across 709.252 square miles of land.
Your street may differ from Blanco County's average
84 of Blanco County's 5,901 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Blanco County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Blanco County's compliance figure is one of the ones affected by FEMA's incomplete denominator data — the data quality guide explains what that means and how many counties it touches.