Septic suitability in Sioux County, NE

Very limited

Sioux County, NE: USDA's soil survey calls 64.6% of the county "Very limited" for a septic leach field. A standard gravity system routinely fails on ground like this; the same share of the county falls in USDA's worst absorption-field bucket outright. For scale: 2,066.723 square miles and 1,099 people call Sioux County home.

Before you rely on this for one lot

Nothing about Sioux County, NE's SSURGO figure applies to a specific address - it's a county-wide average. The real answer for one lot is still a site-specific perc test, running about $750-$1,850 (typically near $1,300).

Budgeting for a system in Sioux County, NE

Sioux County's soil reading pushes the likely outcome toward an engineered system rather than a conventional one. Conventional systems run $3,000-$8,000 where they pass; where they don't, engineered alternatives (mound or aerobic treatment, whichever the health department requires) run $10,000-$40,000 - budget toward the higher figure until a perc test says otherwise.

Where this sits nationally

Among the 3,058 rated counties on this site, Sioux County, NE ranks 2,622 most-constrained nationally, and 72 of 93 within Nebraska.

Related guides

How this rating is built, and its real limits · Conventional vs. engineered septic systems