Septic soil in Worth County, MO, by the numbers
Very limited
In Worth County, MO, 97.2% 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. Worth County, MO is 266.629 square miles with a population of 1,872.
What Worth County's reading doesn't cover
Two lots a mile apart in Worth County can carry different soil, even though they share one countywide rating. A local percolation test, typically $750-$1,850 (around $1,300 typical), is the only way to know what one lot in Worth County will actually do.
What a system would cost here
With 97.2% of Worth 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.
Worth County's rank among Missouri counties
Nationally, Worth County, MO is the 364-most-constrained of 3,058 rated counties for septic soil. Within Missouri alone it ranks 36 of 114.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems