Grant County, MN Septic Rating

Septic suitability in Grant County, MN

Very limited

USDA puts Grant County, MN at "Very limited" for septic absorption fields, the dominant reading across 87% of the county's soil. This is the reading that pushes a project toward an engineered system rather than a conventional one, covering that same share of Grant County's land. For scale: 548 square miles and 6,109 people call Grant County home.

Before you rely on this for one lot

Two lots a mile apart in Grant County can carry different soil, even though they share one countywide rating. 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 Grant County, MN

Grant 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.

Grant County's rank among Minnesota counties

Among the 3,058 rated counties on this site, Grant County, MN ranks 1,545 most-constrained nationally, and 61 of 86 within Minnesota.

Related guides

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