Jackson Parish, LA: the USDA septic-suitability picture

Very limited

Jackson Parish, LA's SSURGO dominant class comes back "Very limited", covering 86% of the county. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 86% of Jackson Parish's land. The county spans 569.655 square miles, home to 14,797 people.

What this number does and doesn't tell you

USDA's survey covers the whole of Jackson Parish, LA 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.

Jackson Parish: conventional vs. engineered cost

86% of Jackson Parish 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.

Jackson Parish's rank among Louisiana counties

Among the 3,058 rated counties on this site, Jackson Parish, LA ranks 1,622 most-constrained nationally, and 33 of 61 within Louisiana.

Before you act on this

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