Cape May County, NJ: the USDA septic-suitability picture

Very limited

Cape May County, NJ: USDA's soil survey calls 80.1% of the county "Very limited" for a septic leach 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. For scale: 251.513 square miles and 93,875 people call Cape May County home.

Before you rely on this for one lot

USDA's survey covers the whole of Cape May County, NJ at once, not any single address. The real answer for one lot is still a site-specific perc test, running about $750-$1,850 (typically near $1,300).

Budgeting for a system in Cape May County, NJ

Cape May County's soil reading pushes the likely outcome toward an engineered system rather than a conventional one. 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.

Cape May County's rank among New Jersey counties

Among the 3,058 rated counties on this site, Cape May County, NJ ranks 2,036 most-constrained nationally, and 16 of 21 within New Jersey.

Further reading

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