Soil survey area

Stone County, Mississippi

Survey Area MS131• Mississippi
The short version

The most common soil here is McLaurin, on about 19% of the land: a loamy sand, gritty and loose. Smithdale and Benndale come next.

About 59% of the land drains well, and 24% stays wet for long stretches; groundwater comes within two feet of the surface under 15% of it.

USDA rates 67% of the land very limited for a standard septic drain field, and 38% very limited for homes with basements. That means extra cost or special design, not that it can't be done.

Worth knowing: 22% 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 ground underfoot

The soils you're most likely standing on

The biggest named soils in Stone County, Mississippi, each drawn five feet deep from its official USDA description, in its recorded colors.

McLaurin
19% of the area
Loamy sand topsoil · well drained
Gritty and loose. Water runs straight through it.
Ultisols
Smithdale
17% of the area
Fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Ultisols
Benndale
12% of the area
Fine sandy loam topsoil · well drained
Gritty and crumbly. Drains fast and warms early in spring.
Ultisols
Susquehanna
10% of the area
Fine sandy loam topsoil · somewhat poorly drained
Gritty and crumbly. Drains fast and warms early in spring.
Alfisols
Smithton
9% of the area
Loam topsoil · poorly drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Ultisols
Harleston
7% of the area
Loam topsoil · moderately well drained
A balanced mix that crumbles in your hand. The gardener's ideal.
Ultisols

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 Stone County, Mississippi. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map UnitAcresDrainageHydro GroupDwellingsSeptic
Smithdale fine sandy loam, 8 to 15 percent slopes 40K Well drainedBSomewhat limitedVery limited
McLaurin fine sandy loam, 2 to 5 percent slopes 29K Well drainedBNot limitedSomewhat limited
Smithton fine sandy loam, frequently flooded 25K Poorly drainedB/DVery limitedVery limited
McLaurin fine sandy loam, undulating 24K Well drainedBNot limitedSomewhat limited
Harleston fine sandy loam, occasionally flooded 19K Moderately well drainedCVery limitedVery limited
Benndale fine sandy loam, undulating 17K Well drainedBNot limitedVery limited
Susquehanna silt loam, 5 to 15 percent slopes 17K Somewhat poorly drainedDVery limitedVery limited
Saucier fine sandy loam, undulating 15K Moderately well drainedCSomewhat limitedVery limited
Benndale fine sandy loam, 2 to 5 percent slopes 13K Well drainedBNot limitedSomewhat limited
Susquehanna silt loam, undulating 10K Somewhat poorly drainedDVery limitedVery limited
Smithdale fine sandy loam, 15 to 25 percent slopes 9K Well drainedBVery limitedVery limited
McLaurin fine sandy loam, 5 to 8 percent slopes 7K Well drainedBNot limitedSomewhat limited
Benndale fine sandy loam, 8 to 12 percent slopes 7K Well drainedBSomewhat limitedSomewhat limited
Smithton-Harleston association, occasionally flooded 7K Poorly drainedB/DVery limitedVery limited
Johnston and Croatan soils, frequently flooded 6K Very poorly drainedA/DVery limitedVery limited
Jena-Nugent complex, frequently flooded 5K Well drainedBVery limitedVery limited
Poarch fine sandy loam, 2 to 5 percent slopes 5K Well drainedBSomewhat limitedVery limited
Malbis fine sandy loam, undulating 4K Moderately well drainedCSomewhat limitedVery limited
Saucier-Susquehanna association, 2 to 8 percent slopes 4K Moderately well drainedDVery limitedVery limited
McLaurin fine sandy loam, 0 to 2 percent slopes 3K Well drainedBNot limitedSomewhat 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.

Ultisols
Strongly weathered clay soils of the Southeast. Acidic and naturally low in nutrients. Clay subsoil can slow drainage.
Alfisols
Moderately weathered forest soils with clay-enriched subsoil. Productive for agriculture, generally good for building and septic.

What This Means

Building & Foundations

About 38% 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.

Look Up a Specific Address

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