Wilkinson County, Mississippi
The dominant drainage class is Well drained and the dominant hydrologic group is B (moderate infiltration). 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 Wilkinson County, Mississippi.
| Soil Map Unit | Acres | Drainage | Hydro Group | Dwellings | Septic |
|---|---|---|---|---|---|
| Lexington-Smithdale complex, 5 to 40 percent slopes, eroded | 54K | Well drained | B | Very limited | Very limited |
| Lorman silt loam, 15 to 45 percent slopes, eroded | 48K | Moderately well drained | D | Very limited | Very limited |
| Memphis silt loam, 15 to 25 percent slopes, eroded | 45K | Well drained | B | Very limited | Very limited |
| Providence silt loam, 5 to 8 percent slopes, eroded | 31K | Moderately well drained | C/D | Very limited | Very limited |
| Natchez-Memphis silt loams, 15 to 60 percent slopes, severely eroded | 23K | Well drained | B | Very limited | Very limited |
| Sharkey silty clay, frequently flooded | 20K | Poorly drained | D | Very limited | Very limited |
| Riedtown silt loam, rarely flooded | 19K | Moderately well drained | C | Very limited | Very limited |
| Memphis silt loam, 5 to 8 percent slopes, eroded | 17K | Well drained | B | Not limited | Somewhat limited |
| Providence silt loam, 2 to 5 percent slopes, eroded | 16K | Moderately well drained | C/D | Very limited | Very limited |
| Memphis silt loam, 8 to 15 percent slopes, eroded | 14K | Well drained | B | Somewhat limited | Somewhat limited |
| Providence silt loam, 8 to 12 percent slopes, eroded | 13K | Moderately well drained | C/D | Very limited | Very limited |
| Fortadams-Natchez silt loams, 20 to 90 percent slopes, severely eroded | 12K | Well drained | B | Very limited | Very limited |
| Water | 10K | Not rated | Not rated | ||
| Loring silt loam, 5 to 8 percent slopes, moderately eroded | 10K | Moderately well drained | C/D | Very limited | Very limited |
| Tunica silty clay, frequently flooded | 10K | Poorly drained | D | Very limited | Very limited |
| Morganfield silt, occasionally flooded | 9K | Well drained | B | Very limited | Very limited |
| Calloway silt loam, 0 to 2 percent slopes | 9K | Somewhat poorly drained | D | Very limited | Very limited |
| Memphis silt, 2 to 5 percent slopes, eroded | 8K | Well drained | B | Not limited | Somewhat limited |
| Lorman silt loam, 8 to 15 percent slopes, eroded | 8K | Moderately well drained | D | Very limited | Very limited |
| Commerce silt loam, frequently flooded | 7K | Somewhat poorly drained | C | Very limited | Very limited |
What This Means
Building & Foundations
About 87% of soils are rated "very limited" for dwellings with basements. Specific challenges include steep slopes, poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 87% 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.