Wilson County's SSURGO septic rating

Very limited

Wilson County, NC: USDA's soil survey calls 62.5% of the county "Very limited" for a septic leach field. That reading means a conventional system is a poor bet here - 62.5% of Wilson County lands in the strictest "very limited" bucket USDA uses. For scale: 367.574 square miles and 79,958 people call Wilson County home.

Before you rely on this for one lot

Wilson County's rating is an average across the whole county, not a promise about any one lot inside it. 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 Wilson County, NC

Wilson 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.

How Wilson County, NC compares

Among the 3,058 rated counties on this site, Wilson County, NC ranks 2,677 most-constrained nationally, and 67 of 97 within North Carolina.

Related guides

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