Septic soil in Chickasaw County, MS, by the numbers
Very limited
In Chickasaw County, MS, 95.7% of the surveyed land carries a "Very limited" rating for a standard septic drain field. A standard gravity system routinely fails on ground like this; the same share of the county falls in USDA's worst absorption-field bucket outright. Chickasaw County, MS is 501.782 square miles with a population of 16,774.
What Chickasaw County's reading doesn't cover
Nothing about Chickasaw County, MS'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 Chickasaw County will actually do.
What a system would cost here
With 95.7% of Chickasaw 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 Chickasaw County, MS compares
Nationally, Chickasaw County, MS is the 570-most-constrained of 3,058 rated counties for septic soil. Within Mississippi alone it ranks 23 of 82.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems