Armstrong County, TX flood risk explained
Flood hazard in Armstrong County sits at the 1.3th national percentile, among the lowest flood hazard in the country; driven by inland rivers and flash flooding rather than the coast — FEMA's model puts a flood event here at about once every 2 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Mandatory flood insurance compliance in Armstrong County
FEMA hasn't published a residential structure count for Armstrong 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, 0% of all residential structures in Armstrong County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Armstrong County against the rest of the country
Among the 3144 US counties FEMA scores for flood hazard, Armstrong County ranks 3108 — 1 being the highest hazard nationally — and 3056 by population among all 3144 counties covered here, where 1 is the largest. About 1,809 people live in Armstrong County, Texas, spread over 909.124 square miles.
Your street may differ from Armstrong County's average
Across all of Armstrong County's 829 residential structures, 0 carry an NFIP policy today — a county-wide count that still can't tell you one address's own mapped zone.
Where Armstrong County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Armstrong 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.