Septic soil in Sussex County, VA, by the numbers

Very limited

In Sussex County, VA, 98.3% 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. Sussex County, VA is 490.244 square miles with a population of 10,753.

What Sussex County's reading doesn't cover

Sussex County's rating is an average across the whole county, not a promise about any one lot inside it. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Sussex County will actually do.

What a system would cost here

With 98.3% of Sussex 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.

Where this sits nationally

Nationally, Sussex County, VA is the 208-most-constrained of 3,058 rated counties for septic soil. Within Virginia alone it ranks 2 of 110.

Before you act on this

How this rating is built, and its real limits · Conventional vs. engineered septic systems