Lonoke County, AR: the USDA septic-suitability picture

Very limited

Lonoke County, AR: USDA's soil survey calls 90.1% of the county "Very limited" for a septic leach field. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 90.1% of the county. The county spans 771.723 square miles, home to 76,389 people.

What this number does and doesn't tell you

Lonoke County's rating is an average across the whole county, not a promise about any one lot inside it. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.

Lonoke County: conventional vs. engineered cost

90.1% of Lonoke 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 Lonoke County, AR compares

Among the 3,058 rated counties on this site, Lonoke County, AR ranks 1,257 most-constrained nationally, and 37 of 75 within Arkansas.

Related guides

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