Jackson County, Mississippi
The most common soil here is Benndale, on about 7% of the land: a fine sandy loam, gritty and crumbly. Vancleave and Bayou come next.
About 24% of the land drains well, and 50% stays wet for long stretches; groundwater comes within two feet of the surface under 48% of it.
USDA rates 76% of the land very limited for a standard septic drain field, and 68% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 35% of the land floods occasionally or more.
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 Jackson County, Mississippi, 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 Very poorly drained and the dominant hydrologic group is B/D (varies with drainage). The most common soil order is Ultisols — strongly weathered soils with clay-enriched subsoils, common in warm humid climates. 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 Jackson County, Mississippi. 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 |
|---|---|---|---|---|---|
| Water (>40 acres) | 43K | Not rated | Not rated | ||
| Croatan and Johnston soils, 0 to 2 percent slopes, frequently flooded | 40K | Very poorly drained | A/D | Very limited | Very limited |
| Urbo-Mooreville-Una complex, 0 to 3 percent slopes, frequently flooded | 28K | Somewhat poorly drained | C/D | Very limited | Very limited |
| Bayou sandy loam, 0 to 1 percent slopes | 23K | Poorly drained | B/D | Very limited | Very limited |
| Handsboro mucky silt loam, frequently flooded | 20K | Very poorly drained | B/D | Very limited | Very limited |
| Benndale fine sandy loam, 2 to 5 percent slopes | 19K | Well drained | B | Not limited | Somewhat limited |
| Atmore loam, 1 to 3 percent slopes | 18K | Poorly drained | D | Very limited | Very limited |
| Smithton loam, 0 to 1 percent slopes, occasionally flooded | 18K | Poorly drained | C/D | Very limited | Very limited |
| Axis mucky sandy clay loam, frequently flooded | 16K | Very poorly drained | B/D | Very limited | Very limited |
| Vancleave loamy sand, 0 to 2 percent slopes | 16K | Moderately well drained | C | Very limited | Very limited |
| Wadley loamy fine sand, 0 to 5 percent slopes | 13K | Somewhat excessively drained | A | Not limited | Very limited |
| Hyde silt loam | 12K | Very poorly drained | D | Very limited | Very limited |
| Vancleave loamy sand, 2 to 5 percent slopes | 11K | Moderately well drained | C | Very limited | Very limited |
| Malbis fine sandy loam, 2 to 5 percent slopes | 11K | Well drained | C | Somewhat limited | Very limited |
| Benndale fine sandy loam, 3 to 8 percent slopes | 11K | Well drained | B | Not limited | Not limited |
| Mooreville, Jena and Urbo soils, 0 to 3 percent slopes, frequently flooded | 11K | Moderately well drained | C | Very limited | Very limited |
| Freest sandy loam, 2 to 5 percent slopes | 10K | Moderately well drained | C | Very limited | Very limited |
| Poarch fine sandy loam, 2 to 5 percent slopes | 9K | Well drained | B | Somewhat limited | Very limited |
| Benndale fine sandy loam, 0 to 2 percent slopes | 8K | Well drained | B | Not limited | Somewhat limited |
| Smithdale-Boykin complex, 5 to 17 percent slopes | 8K | Well drained | A | Somewhat limited | Somewhat 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 68% of soils are rated "very limited" for dwellings with basements. Specific challenges include poor drainage in some areas, flood-prone areas. A geotechnical assessment is recommended before building.
Septic Systems
About 76% of soils are rated "very limited" for septic absorption fields. Poorly drained soils can't absorb septic effluent effectively. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.
Gardening & Agriculture
Many soils hold water for extended periods. Raised beds are highly recommended to improve drainage for vegetables. Well-adapted native plants and water-loving species will do best in natural conditions.