Stonewall County, Texas
The most common soil here is Tillman, on about 11% of the land: a loam, a balanced mix that crumbles in your hand. Nobscot and Knoco come next.
About 99% of the land drains well.
USDA rates 84% of the land very limited for a standard septic drain field, and 50% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 7% of the land floods occasionally or more, and bedrock lies within 40 inches under 45% of it.
Soils change over short distances, so look up an address below for the soil at that exact spot and the reasons behind each rating.
The soils you're most likely standing on
The biggest named soils in Stonewall County, Texas, each drawn five feet deep from its official USDA description, in its recorded colors.
Dots mark gravel; white flecks mark lime. Shares are by acres across the survey area, and each mapped patch usually mixes several of these soils.
The biggest mapped areas
The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Alfisols — moderately leached forest soils with a clay-enriched subsoil. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Stonewall County, Texas. Search your address to find the exact soil composition, drainage, and series details at your specific location.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Knoco-Badland complex, dry, 1 to 12 percent slopes | 53K | Well drained | D | Very limited | Very limited |
| Nobscot association | 49K | Well drained | A | Not limited | Very limited |
| Cottonwood-Knoco complex, 3 to 20 percent slopes | 44K | Well drained | D | Very limited | Very limited |
| Tillman clay loam, 1 to 3 percent slopes | 40K | Well drained | C | Very limited | Very limited |
| Woodward-Quinlan complex, 5 to 12 percent slopes | 39K | Well drained | C | Somewhat limited | Very limited |
| Quinlan-Rough broken land complex | 31K | Well drained | D | Very limited | Very limited |
| Tillman clay loam, 0 to 1 percent slopes | 30K | Well drained | C | Very limited | Very limited |
| Paducah loam, 1 to 3 percent slopes | 26K | Well drained | B | Not limited | Somewhat limited |
| Obaro very fine sandy loam, 3 to 5 percent slopes | 26K | Well drained | C | Somewhat limited | Very limited |
| Talpa-Yates complex | 26K | Well drained | D | Very limited | Very limited |
| Miles fine sandy loam, 1 to 3 percent slopes | 15K | Well drained | B | Not limited | Somewhat limited |
| Vernon clay loam, dry, 1 to 3 percent slopes | 12K | Well drained | D | Somewhat limited | Very limited |
| Cobb fine sandy loam, 1 to 3 percent slopes | 12K | Well drained | C | Somewhat limited | Very limited |
| Rotan clay loam, dry, 0 to 1 percent slopes | 12K | Well drained | C | Somewhat limited | Very limited |
| Miles loamy fine sand, 0 to 3 percent slopes | 10K | Well drained | B | Somewhat limited | Very limited |
| Frankirk clay loam, 0 to 1 percent slopes | 9K | Well drained | C | Somewhat limited | Very limited |
| Lincoln loamy fine sand, dry, 0 to 1 percent slopes, frequently flooded | 9K | Somewhat excessively drained | A | Very limited | Very limited |
| Paducah loam, 3 to 5 percent slopes | 9K | Well drained | B | Not limited | Somewhat limited |
| Hilgrave gravelly sandy loam, 3 to 8 percent slopes | 9K | Well drained | B | Not limited | Very limited |
| Breaks-Yomont complex, 0 to 60 percent slopes | 9K | Well drained | D | Very limited | Very limited |
Soil Orders in This Area
The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.
What This Means
Building & Foundations
About 50% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 84% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Well-drained soils on sloped terrain — good for most plants but watch for erosion. Terracing, contour planting, and mulching help retain moisture and topsoil. Drip irrigation is more effective than sprinklers on slopes.