Septic soil in Cheyenne County, NE, by the numbers
Somewhat limited
57.5% of Cheyenne County, NE's surveyed soil comes back "Somewhat limited" in USDA's own SSURGO data, the county's dominant condition for a septic absorption field. It's a soil condition contractors work around routinely, with a bigger field or added fill, rather than one that forces an engineered system outright. Cheyenne County, NE is 1,196.008 square miles with a population of 9,602.
What Cheyenne County's reading doesn't cover
Two lots a mile apart in Cheyenne County can carry different soil, even though they share one countywide rating. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Cheyenne County will actually do.
What a system would cost here
With 57.5% of Cheyenne County rating "Somewhat limited", a standard gravity system is not a safe assumption here. The engineered-system range, $10,000-$40,000 (mound or aerobic treatment), is the more realistic number to plan around, against $3,000-$8,000 for a conventional system on the rare lot that passes.
How Cheyenne County, NE compares
Nationally, Cheyenne County, NE is the 2,968-most-constrained of 3,058 rated counties for septic soil. Within Nebraska alone it ranks 92 of 93.
Related guides
How this rating is built, and its real limits · How a percolation test actually works