Septic suitability in Acadia Parish, LA
Very limited
Acadia Parish, LA: USDA's soil survey calls 99% of the county "Very limited" for a septic leach field. Practically, that rules out a simple gravity system for most of the county - 99% of it sits in USDA's most-constrained bucket. The county spans 655.244 square miles, home to 56,604 people.
What this number does and doesn't tell you
Two lots a mile apart in Acadia Parish can carry different soil, even though they share one countywide rating. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Acadia Parish: conventional vs. engineered cost
99% of Acadia 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.
How Acadia Parish, LA compares
Among the 3,058 rated counties on this site, Acadia Parish, LA ranks 88 most-constrained nationally, and 2 of 61 within Louisiana.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems