Septic suitability in Jones County, MS
Very limited
Jones County, MS: USDA's soil survey calls 82.3% of the county "Very limited" for a septic leach field. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 82.3% of Jones County's land. The county spans 694.845 square miles, home to 65,837 people.
What this number does and doesn't tell you
USDA's survey covers the whole of Jones 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.
Jones County: conventional vs. engineered cost
82.3% of Jones 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.
How Jones County, MS compares
Among the 3,058 rated counties on this site, Jones County, MS ranks 1,904 most-constrained nationally, and 66 of 82 within Mississippi.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems