Septic suitability in Henry County, AL
Very limited
USDA puts Henry County, AL at "Very limited" for septic absorption fields, the dominant reading across 59.6% of the county's soil. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 59.6% of Henry County's land. The county spans 561.927 square miles, home to 18,141 people.
What this number does and doesn't tell you
Henry 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.
Henry County: conventional vs. engineered cost
59.6% of Henry 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.
Henry County's rank among Alabama counties
Among the 3,058 rated counties on this site, Henry County, AL ranks 2,730 most-constrained nationally, and 56 of 67 within Alabama.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems