Soil series profile
Coxville soil series
Coxville is a poorly drained soil with a fine sandy loam surface, mapped on 536,461 acres in 53 counties across 5 states. Hydrologic group C/D.
- Drainage class
- Poorly drained 100% of mapped acres
- Hydrologic group
- C/D >99% of mapped acres
- Typical topsoil pH
- 4.6 very strongly acidic · range 4.6–4.7
- Mapped area
- 536k acres in 53 counties, 5 states
Typical Coxville profile
Texture and pH by depth
Show as a table
| Depth | Texture | pH | Clay | Sand | Organic matter |
|---|---|---|---|---|---|
| 0–6 in (Ap) | Fine sandy loam | 4.6 | 16% | 65% | 3% |
| 6–22 in (Btg1) | Sandy clay loam | 4.7 | 27% | 55% | 0.25% |
| 22–75 in (Btg2) | Sandy clay | 4.7 | 45% | 48% | 0.25% |

What this means
What Coxville soil means for gardens, lawns and septic systems
For gardens
Typical topsoil in Coxville soils is very strongly acidic: pH 4.6 (most land between 4.6 and 4.7). Most vegetables and lawn grasses do best around 6.0 to 7.0, so lime is often needed; blueberries, azaleas and rhododendrons like it as it is.
Loamy topsoil (loam, silt loam and similar) covers 100% of mapped Coxville acres: generally the easiest soil to garden, holding moisture without staying waterlogged. The most common surface texture is fine sandy loam (48% of mapped Coxville acres).
100% of mapped Coxville acres is somewhat poorly to very poorly drained, so soil stays soggy for long spells after rain and in wet seasons. Raised beds, plants that tolerate wet feet, and not working the soil while wet all help.
For lawns and yards
On 100% of mapped acres, rain soaks in slowly (hydrologic groups C and D, including dual groups that are D until drained). Expect runoff and puddles after heavy rain: core-aerate compacted lawns and keep ground sloping away from foundations.
A seasonal high water table comes within 18 inches of the surface on 100% of mapped acres, often in spring. Basements, sump pumps and lawns in low spots feel it first.
For a septic system
For conventional septic absorption fields, NRCS rates 100% of the acres in mapped Coxville soils very limited, 0% somewhat limited and 0% not limited.
Where the soil is very limited (slow permeability, a high water table, flooding, shallow bedrock or steep slopes), alternative systems such as mound or sand-filter designs are common and cost more.
Only a licensed site evaluation or perc test at the actual lot decides whether a system is allowed and which design.
Where Coxville soil is found
Mapped acres
Coxville is mapped in South Carolina, North Carolina, Georgia, Virginia and Alabama.
| County | Acres | Share of county land |
|---|---|---|
| Florence County, SC | 74,107 | 15.5% |
| Berkeley County, SC | 52,648 | 7.7% |
| Orangeburg County, SC | 40,152 | 5.8% |
| Williamsburg County, SC | 36,376 | 6.2% |
| Robeson County, NC | 30,606 | 5.3% |
| Dillon County, SC | 30,593 | 11.8% |
| Marlboro County, SC | 29,975 | 10.3% |
| Darlington County, SC | 27,374 | 8.2% |
| Pitt County, NC | 27,365 | 7.2% |
| Bamberg County, SC | 19,279 | 8.4% |
| Marion County, SC | 18,917 | 6.2% |
| Sumter County, SC | 14,804 | 3.5% |
| Hampton County, SC | 11,825 | 3.4% |
| Lee County, SC | 11,491 | 4.4% |
| Colleton County, SC | 10,589 | 1.8% |
| Worth County, GA | 7,760 | 2.4% |
| Horry County, SC | 7,392 | 1.0% |
| Bladen County, NC | 6,013 | 1.2% |
| Richland County, SC | 5,952 | 1.3% |
| Scotland County, NC | 5,872 | 3.1% |
| McIntosh County, GA | 5,824 | 2.2% |
| Hanover County, VA | 5,193 | 2.0% |
| Hoke County, NC | 4,851 | 2.1% |
| Dorchester County, SC | 4,640 | 1.3% |
| Allendale County, SC | 3,938 | 1.0% |
| Wilson County, NC | 3,890 | 1.8% |
| Columbus County, NC | 3,714 | 0.7% |
| Thomas County, GA | 3,668 | 1.2% |
| Escambia County, AL | 3,576 | 0.7% |
| Calhoun County, SC | 3,104 | 1.3% |
| Cumberland County, NC | 3,076 | 0.8% |
| Mitchell County, GA | 3,010 | 1.1% |
| Chesterfield County, SC | 2,665 | 0.6% |
| Sampson County, NC | 2,642 | 0.5% |
| Jasper County, SC | 2,331 | 0.6% |
| Harnett County, NC | 2,064 | 0.6% |
| Lenoir County, NC | 2,023 | 0.8% |
| Chesterfield County, VA | 1,305 | 0.6% |
| Wayne County, NC | 1,155 | 0.4% |
| Henrico County, VA | 1,140 | 0.9% |
| Edgecombe County, NC | 1,090 | 0.4% |
| Clarendon County, SC | 1,026 | 0.3% |
| Brooks County, GA | 621 | 0.2% |
| Glynn County, GA | 137 | 0.1% |
| Camden County, GA | 131 | 0.0% |
| Baker County, GA | 112 | 0.1% |
| Wheeler County, GA | 110 | 0.1% |
| Toombs County, GA | 110 | 0.1% |
| Montgomery County, GA | 74 | 0.1% |
| Franklin County, NC | 60 | 0.0% |
| Greene County, NC | 45 | 0.0% |
| Jeff Davis County, GA | 41 | 0.0% |
| Appling County, GA | 5 | 0.0% |
Septic absorption fields
NRCS rating, share of Coxville acres
Show as a table
| Category | Share of acres |
|---|---|
| Not limited | 0.0% |
| Somewhat limited | 0.0% |
| Very limited | 100.0% |
Drainage, water table and flooding
Share of Coxville acres
- Depth to seasonal high water table
- About 0 inches (median where reported); within 18 inches on 100% of acres.
- Flooding
- Mapped as flooding on <1% of acres (0% occasional, <1% frequent).
- Slope
- Typically 1–1% (median 1%).
- Topsoil organic matter
- Median 3%.
Drainage class
Show as a table
| Category | Share of acres |
|---|---|
| Excessively drained | 0.0% |
| Somewhat excessively drained | 0.0% |
| Well drained | 0.0% |
| Moderately well drained | 0.0% |
| Somewhat poorly drained | 0.0% |
| Poorly drained | 100.0% |
| Very poorly drained | 0.0% |
Hydrologic soil group
Show as a table
| Category | Share of acres |
|---|---|
| A: fast infiltration (mostly sandy or gravelly) | 0.0% |
| B: moderate infiltration | 0.0% |
| C: slow infiltration | 0.0% |
| D: very slow infiltration (clayey, shallow or wet) | 0.9% |
| A/D: D as is, A if drained | 0.0% |
| B/D: D as is, B if drained | 0.0% |
| C/D: D as is, C if drained | 99.1% |
Sources & data dates
- Source
- USDA NRCS Soil Survey Geographic Database (SSURGO), queried through Soil Data Access. Public domain.
- Data date
- SSURGO as published on November 3, 2026 (most recent survey area update October 26, 2026). NRCS refreshes SSURGO each October.
- Scope
- All map unit components named Coxville (component kind "Series") in SSURGO: 536,461 acres.
- Method
- Shares are by mapped acres of Coxville components. The profile comes from the single largest Coxville component. Full methodology.