Cheyenne County, CO Flood Zone & Flood Risk Data
Cheyenne County, CO: flood risk, in FEMA's own numbers
On FEMA's National Risk Index, Cheyenne County scores at the 4th percentile for flood hazard, rated "Very Low", among the lowest flood hazard in the country. The hazard here is driven by inland rivers and flash flooding rather than the coast, FEMA's model puts a flood event here at about once 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 Cheyenne County
FEMA hasn't published a residential structure count for Cheyenne 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 Cheyenne County carry flood coverage voluntarily or otherwise, relevant because most NFIP claims nationally come from outside the mapped SFHA.
Where Cheyenne County ranks
Among the 3144 US counties FEMA scores for flood hazard, Cheyenne County ranks 3024, 1 being the highest hazard nationally, and 3065 by population among all 3144 counties covered here, where 1 is the largest. Cheyenne County, Colorado is home to about 1,712 people across 1,778.276 square miles of land.
Your street may differ from Cheyenne County's average
0 of Cheyenne County's 1,313 residential structures carry flood coverage of some kind, per FEMA's latest count, useful context, not a substitute for checking one parcel.
Where Cheyenne County's figures come from
Every figure on this page traces to a named FEMA dataset, documented in the methodology guide. Cheyenne 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.