Sweetwater County, WY flood risk explained
Flood hazard in Sweetwater County sits at the 52.4th 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 once every 3 years. This describes the county, not any one street — FEMA only publishes exact parcel zones through a live map service.
Who actually carries the flood insurance FEMA requires
FEMA hasn't published a residential structure count for Sweetwater 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, 0.3% of all residential structures in Sweetwater County carry flood coverage voluntarily or otherwise — relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Sweetwater County ranks
Among the 3144 US counties FEMA scores for flood hazard, Sweetwater County ranks 1559 — 1 being the highest hazard nationally — and 1168 by population among all 3144 counties covered here, where 1 is the largest. Sweetwater County, Wyoming is home to about 41,273 people across 10,426.981 square miles of land.
Checking a specific address in Sweetwater County
47 of Sweetwater County's 17,518 residential structures carry flood coverage of some kind, per FEMA's latest count — useful context, not a substitute for checking one parcel.
Where Sweetwater County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Sweetwater 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.