Todd County's SSURGO septic rating
Very limited
USDA puts Todd County, KY at "Very limited" for septic absorption fields, the dominant reading across 60.7% of the county's soil. That reading means a conventional system is a poor bet here - 60.7% of Todd County lands in the strictest "very limited" bucket USDA uses. The county spans 374.518 square miles, home to 12,757 people.
What this number does and doesn't tell you
USDA's survey covers the whole of Todd County, KY at once, not any single address. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Todd County: conventional vs. engineered cost
60.7% of Todd 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.
Todd County's rank among Kentucky counties
Among the 3,058 rated counties on this site, Todd County, KY ranks 2,717 most-constrained nationally, and 112 of 119 within Kentucky.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems