Hardeman County, Texas
The most common soil here is Tillman, on about 13% of the land: a loam, a balanced mix that crumbles in your hand. Hollister and Devol come next.
About 98% of the land drains well.
USDA rates 91% of the land very limited for a standard septic drain field, and 52% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 6% of the land floods occasionally or more, and bedrock lies within 40 inches under 29% 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 Hardeman 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 C (slow infiltration, moderate runoff). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. 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 Hardeman 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 |
|---|---|---|---|---|---|
| Tillman clay loam, 1 to 3 percent slopes | 57K | Well drained | C | Very limited | Very limited |
| Cottonwood-Knoco complex, 3 to 20 percent slopes | 32K | Well drained | D | Very limited | Very limited |
| Hollister clay loam, 0 to 1 percent slopes | 26K | Well drained | C | Very limited | Very limited |
| Devol loamy sand, 0 to 3 percent slopes | 26K | Well drained | A | Not limited | Very limited |
| Knoco-Badland complex, dry, 1 to 12 percent slopes | 22K | Well drained | D | Very limited | Very limited |
| Miles loamy fine sand, moist, 0 to 3 percent slopes | 20K | Well drained | B | Somewhat limited | Very limited |
| Quanah-Talpa complex, 1 to 8 percent slopes | 19K | Well drained | B | Somewhat limited | Somewhat limited |
| Vernon clay loam, dry, 1 to 3 percent slopes | 18K | Well drained | D | Somewhat limited | Very limited |
| Sagerton clay loam, moist, 1 to 3 percent slopes | 14K | Well drained | C | Somewhat limited | Very limited |
| Grandfield fine sandy loam, 1 to 3 percent slopes | 14K | Well drained | B | Not limited | Very limited |
| Weymouth clay loam, 1 to 3 percent slopes | 13K | Well drained | C | Somewhat limited | Very limited |
| Badland | 13K | Well drained | D | Very limited | Very limited |
| Hollister clay loam, 1 to 3 percent slopes | 12K | Well drained | C | Very limited | Very limited |
| Colorado and Spur soils, 0 to 1 percent slopes, frequently flooded | 11K | Well drained | B | Very limited | Very limited |
| Tivoli fine sand, 5 to 30 percent slopes | 11K | Excessively drained | A | Very limited | Very limited |
| Rotan clay loam, 0 to 1 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
| Sagerton clay loam, moist, 0 to 1 percent slopes | 10K | Well drained | C | Somewhat limited | Very limited |
| Devol loamy sand, 3 to 8 percent slopes | 9K | Well drained | A | Not limited | Very limited |
| Quanah silty clay loam, 1 to 3 percent slopes | 8K | Well drained | B | Somewhat limited | Somewhat limited |
| Tillman clay loam, 0 to 1 percent slopes | 6K | Well drained | C | 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 52% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, steep slopes, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 91% 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
Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.