Harnett County, North Carolina
The most common soil here is Norfolk, on about 10% of the land: a loamy sand, gritty and loose. Gilead and Blaney come next.
About 63% of the land drains well, and 20% stays wet for long stretches; groundwater comes within two feet of the surface under 20% of it.
USDA rates 67% of the land very limited for a standard septic drain field, and 43% very limited for homes with basements. That means extra cost or special design, not that it can't be done.
Worth knowing: 15% of the land floods occasionally or more, and bedrock lies within 40 inches under 1% 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 Harnett County, North Carolina, 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 B (moderate infiltration). 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 Harnett County, North Carolina. 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 |
|---|---|---|---|---|---|
| Gilead loamy sand, 2 to 8 percent slopes | 32K | Moderately well drained | C | Very limited | Very limited |
| Blaney loamy sand, 2 to 8 percent slopes | 29K | Well drained | C | Not limited | Very limited |
| Bibb soils, frequently flooded | 26K | Poorly drained | A/D | Very limited | Very limited |
| Norfolk loamy sand, 2 to 6 percent slopes | 23K | Well drained | B | Somewhat limited | Somewhat limited |
| Cecil fine sandy loam, 8 to 15 percent slopes | 17K | Well drained | A | Somewhat limited | Somewhat limited |
| Fuquay gravelly loamy sand, 0 to 6 percent slopes | 17K | Well drained | B | Somewhat limited | Very limited |
| Dothan loamy sand, 0 to 2 percent slopes | 16K | Well drained | B | Somewhat limited | Very limited |
| Roanoke loam, occasionally flooded | 16K | Poorly drained | C/D | Very limited | Very limited |
| Norfolk loamy sand, 0 to 2 percent slopes | 14K | Well drained | B | Somewhat limited | Somewhat limited |
| Cecil fine sandy loam, 2 to 8 percent slopes | 14K | Well drained | A | Not limited | Somewhat limited |
| Candor sand, 0 to 8 percent slopes | 11K | Somewhat excessively drained | A | Somewhat limited | Somewhat limited |
| Pacolet fine sandy loam, 15 to 25 percent slopes | 10K | Well drained | B | Very limited | Very limited |
| Wehadkee loam, frequently flooded | 10K | Poorly drained | B/D | Very limited | Very limited |
| Blaney loamy sand, 8 to 15 percent slopes | 8K | Well drained | C | Somewhat limited | Very limited |
| Gilead loamy sand, 8 to 15 percent slopes | 8K | Moderately well drained | C | Very limited | Very limited |
| Wagram loamy sand, 6 to 10 percent slopes | 8K | Well drained | A | Not limited | Somewhat limited |
| Wickham fine sandy loam, 0 to 6 percent slopes, rarely flooded | 6K | Well drained | B | Very limited | Very limited |
| Wagram loamy sand, 0 to 6 percent slopes | 6K | Well drained | A | Not limited | Somewhat limited |
| Rains sandy loam, 0 to 2 percent slopes | 6K | Poorly drained | A/D | Very limited | Very limited |
| Dothan gravelly loamy sand, 0 to 6 percent slopes | 6K | Well drained | B | 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 43% of soils have significant building limitations, while the rest are generally suitable. Check specific sites carefully — conditions vary across the area.
Septic Systems
About 67% 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.