Cooke County, TX Septic Rating
Cooke County, TX: the USDA septic-suitability picture
Very limited
Cooke County, TX's SSURGO dominant class comes back "Very limited", covering 80.6% of the county. This is the reading that pushes a project toward an engineered system rather than a conventional one, covering that same share of Cooke County's land. The county spans 875 square miles, home to 44,258 people.
What this number does and doesn't tell you
Nothing about Cooke County, TX's SSURGO figure applies to a specific address - it's a county-wide average. Budget $750-$1,850 for a real perc test on any specific parcel - that's the only figure a permit application accepts.
Cooke County: conventional vs. engineered cost
80.6% of Cooke 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, Cooke County, TX ranks 2,011 most-constrained nationally, and 150 of 253 within Texas.
Related guides
How this rating is built, and its real limits · Conventional vs. engineered septic systems