Septic suitability in Beltrami County, MN

Very limited

USDA puts Beltrami County, MN at "Very limited" for septic absorption fields, the dominant reading across 76.1% of the county's soil. 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. The county spans 2,504.643 square miles, home to 46,762 people.

What this number does and doesn't tell you

Two lots a mile apart in Beltrami County can carry different soil, even though they share one countywide rating. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Beltrami County: conventional vs. engineered cost

76.1% of Beltrami 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.

Where this sits nationally

Among the 3,058 rated counties on this site, Beltrami County, MN ranks 2,226 most-constrained nationally, and 79 of 86 within Minnesota.

Before you act on this

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