Letcher County, KY: the USDA septic-suitability picture

Very limited

Letcher County, KY: USDA's soil survey calls 97.2% of the county "Very limited" for a septic leach field. That reading means a conventional system is a poor bet here - 97.2% of Letcher County lands in the strictest "very limited" bucket USDA uses. For scale: 337.934 square miles and 20,139 people call Letcher County home.

Before you rely on this for one lot

Nothing about Letcher County, KY'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 Letcher County, KY

Letcher 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, Letcher County, KY ranks 357 most-constrained nationally, and 12 of 119 within Kentucky.

Further reading

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