Jasper County's SSURGO septic rating
Very limited
USDA puts Jasper County, MO at "Very limited" for septic absorption fields, the dominant reading across 80.3% of the county's soil. This is the reading that pushes a project toward an engineered system rather than a conventional one, and it covers 80.3% of Jasper County's land. The county spans 638.506 square miles, home to 126,479 people.
What this number does and doesn't tell you
USDA's survey covers the whole of Jasper County, MO at once, not any single address. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Jasper County: conventional vs. engineered cost
80.3% of Jasper County carrying a "Very limited" reading changes the realistic budget here. 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.
Where this sits nationally
Among the 3,058 rated counties on this site, Jasper County, MO ranks 2,026 most-constrained nationally, and 102 of 114 within Missouri.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems