Septic soil in Yellow Medicine County, MN, by the numbers

Very limited

Soil across 94.6% of Yellow Medicine County, MN rates "Very limited" in USDA's septic-absorption-field interpretation. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 94.6% of Yellow Medicine County's land. Yellow Medicine County, MN is 759.101 square miles with a population of 9,373.

What Yellow Medicine County's reading doesn't cover

Yellow Medicine County's rating is an average across the whole county, not a promise about any one lot inside it. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Yellow Medicine County will actually do.

What a system would cost here

With 94.6% of Yellow Medicine County rating "Very 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.

Where this sits nationally

Nationally, Yellow Medicine County, MN is the 711-most-constrained of 3,058 rated counties for septic soil. Within Minnesota alone it ranks 27 of 86.

Before you act on this

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