Faribault County, MN: the USDA septic-suitability picture
Very limited
USDA puts Faribault County, MN at "Very limited" for septic absorption fields, the dominant reading across 91.1% 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 712.479 square miles, home to 13,886 people.
What this number does and doesn't tell you
Nothing about Faribault County, MN's SSURGO figure applies to a specific address - it's a county-wide average. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Faribault County: conventional vs. engineered cost
91.1% of Faribault 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.
How Faribault County, MN compares
Among the 3,058 rated counties on this site, Faribault County, MN ranks 1,155 most-constrained nationally, and 40 of 86 within Minnesota.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems