Septic soil in Jackson County, WV, by the numbers
Very limited
Soil across 94.3% of Jackson County, WV rates "Very limited" in USDA's septic-absorption-field interpretation. Practically, that rules out a simple gravity system for most of the county - 94.3% of it sits in USDA's most-constrained bucket. Jackson County, WV is 464.36 square miles with a population of 27,718.
What Jackson County's reading doesn't cover
Nothing about Jackson County, WV's SSURGO figure applies to a specific address - it's a county-wide average. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Jackson County will actually do.
What a system would cost here
With 94.3% of Jackson County rating "Very limited", a standard gravity system is not a safe assumption here. The engineered-system range, $10,000-$40,000 (mound or aerobic treatment), is the more realistic number to plan around, against $3,000-$8,000 for a conventional system on the rare lot that passes.
How Jackson County, WV compares
Nationally, Jackson County, WV is the 742-most-constrained of 3,058 rated counties for septic soil. Within West Virginia alone it ranks 32 of 55.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems