Lawrence County, MS: the USDA septic-suitability picture

Very limited

USDA puts Lawrence County, MS at "Very limited" for septic absorption fields, the dominant reading across 92.2% of the county's soil. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 92.2% of Lawrence County's land. The county spans 430.602 square miles, home to 11,672 people.

What this number does and doesn't tell you

USDA's survey covers the whole of Lawrence County, MS 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.

Lawrence County: conventional vs. engineered cost

92.2% of Lawrence 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.

Lawrence County's rank among Mississippi counties

Among the 3,058 rated counties on this site, Lawrence County, MS ranks 1,016 most-constrained nationally, and 40 of 82 within Mississippi.

Before you act on this

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