Sutton County's SSURGO septic rating
Very limited
Sutton County, TX: USDA's soil survey calls 100% of the county "Very limited" for a septic leach field. That reading means a conventional system is a poor bet here - 100% of Sutton County lands in the strictest "very limited" bucket USDA uses. The county spans 1,453.935 square miles, home to 3,269 people.
What this number does and doesn't tell you
USDA's survey covers the whole of Sutton County, TX 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.
Sutton County: conventional vs. engineered cost
100% of Sutton 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.
Sutton County's rank among Texas counties
Among the 3,058 rated counties on this site, Sutton County, TX ranks 1 most-constrained nationally, and 1 of 253 within Texas.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems