Hennepin County, MN's soil, for a septic absorption field
Very limited
In Hennepin County, MN, 65.3% of the surveyed land carries a "Very limited" rating for a standard septic drain field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 65.3% of Hennepin County's land. Hennepin County, MN is 554.02 square miles with a population of 1,273,334.
What Hennepin County's reading doesn't cover
Nothing about Hennepin County, MN's SSURGO figure applies to a specific address - it's a county-wide average. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Hennepin County will actually do.
What a system would cost here
With 65.3% of Hennepin 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, Hennepin County, MN is the 2,601-most-constrained of 3,058 rated counties for septic soil. Within Minnesota alone it ranks 86 of 86.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems