Coffee County, AL: the USDA septic-suitability picture
Very limited
USDA puts Coffee County, AL at "Very limited" for septic absorption fields, the dominant reading across 51.2% of the county's soil. That reading means a conventional system is a poor bet here - 51.2% of Coffee County lands in the strictest "very limited" bucket USDA uses. The county spans 679.066 square miles, home to 56,358 people.
What this number does and doesn't tell you
This is a countywide, area-weighted figure across every soil survey map unit in Coffee County, AL - never a reading for one specific parcel. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Coffee County: conventional vs. engineered cost
51.2% of Coffee 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.
Coffee County's rank among Alabama counties
Among the 3,058 rated counties on this site, Coffee County, AL ranks 2,856 most-constrained nationally, and 62 of 67 within Alabama.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems