Kingsbury County, SD: the USDA septic-suitability picture

Very limited

Kingsbury County, SD: USDA's soil survey calls 90.1% of the county "Very limited" for a septic leach field. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 90.1% of the county. The county spans 832.237 square miles, home to 5,261 people.

What this number does and doesn't tell you

Kingsbury County's rating is an average across the whole county, not a promise about any one lot inside it. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Kingsbury County: conventional vs. engineered cost

90.1% of Kingsbury County carrying a "Very limited" reading changes the realistic budget here. 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.

How Kingsbury County, SD compares

Among the 3,058 rated counties on this site, Kingsbury County, SD ranks 1,263 most-constrained nationally, and 26 of 66 within South Dakota.

Before you act on this

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