Itasca County, MN's soil, for a septic absorption field

Very limited

80.4% of Itasca County, MN's surveyed soil comes back "Very limited" in USDA's own SSURGO data, the county's dominant condition for a septic absorption field. That reading means a conventional system is a poor bet here - 80.4% of Itasca County lands in the strictest "very limited" bucket USDA uses. Itasca County, MN is 2,667.474 square miles with a population of 45,442.

What Itasca County's reading doesn't cover

Itasca 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 Itasca County will actually do.

What a system would cost here

With 80.4% of Itasca 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.

Itasca County's rank among Minnesota counties

Nationally, Itasca County, MN is the 2,021-most-constrained of 3,058 rated counties for septic soil. Within Minnesota alone it ranks 71 of 86.

Further reading

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