Septic suitability in Brantley County, GA
Very limited
Brantley County, GA's SSURGO dominant class comes back "Very limited", covering 99.2% of the county. Expect the ground itself to work against a plain gravity system; USDA's strictest bucket alone covers 99.2% of the county. The county spans 443.241 square miles, home to 18,795 people.
What this number does and doesn't tell you
USDA's survey covers the whole of Brantley County, GA 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.
Brantley County: conventional vs. engineered cost
99.2% of Brantley 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.
Where this sits nationally
Among the 3,058 rated counties on this site, Brantley County, GA ranks 66 most-constrained nationally, and 4 of 159 within Georgia.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems