Ste. Genevieve County, MO: the USDA septic-suitability picture

Very limited

USDA puts Ste. Genevieve County, MO 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. For scale: 499.163 square miles and 18,546 people call Ste. Genevieve County home.

Before you rely on this for one lot

Nothing about Ste. Genevieve County, MO's SSURGO figure applies to a specific address - it's a county-wide average. 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 Ste. Genevieve County, MO

Ste. Genevieve 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.

Ste. Genevieve County's rank among Missouri counties

Among the 3,058 rated counties on this site, Ste. Genevieve County, MO ranks 1,153 most-constrained nationally, and 76 of 114 within Missouri.

Before you act on this

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