Septic suitability in Pope County, IL

Very limited

Pope County, IL: USDA's soil survey calls 90.7% of the county "Very limited" for a septic leach field. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 90.7% of the county. For scale: 368.867 square miles and 3,703 people call Pope County home.

Before you rely on this for one lot

Two lots a mile apart in Pope County can carry different soil, even though they share one countywide rating. 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 Pope County, IL

Pope 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.

Where this sits nationally

Among the 3,058 rated counties on this site, Pope County, IL ranks 1,201 most-constrained nationally, and 46 of 101 within Illinois.

Further reading

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