Jefferson County Soil Data
Jefferson County, Mississippi
Avg pH
5.8
Texture
Silt Loam
Drainage
N/A
Organic Matter
1.6%
Hydrologic Group
N/A
Data Story
About Soil in Jefferson County, Mississippi
Milder Acidity in Jefferson County
Jefferson County features an average pH of 5.83, which is notably less acidic than the Mississippi state average of 5.30. While still below the national median of 6.5, this milder acidity makes it more hospitable for a wider variety of plants. It is one of the better-performing soil profiles in the region.
Silt-Rich Soils with Low Sand
The soil composition is 60.5% silt, 20.4% sand, and 19.1% clay. This high silt content provides a smooth, flour-like texture that is excellent for moisture retention. The balanced clay and sand percentages offer a good mix of drainage and nutrient stability.
Exceptional Water Capacity for Crops
Jefferson County boasts an available water capacity of 0.197 in/in, well above the state average of 0.174. Organic matter is slightly lower than the state average at 1.60%, but the soil's ability to hold water is a major agricultural asset. This high capacity helps crops survive through summer heat waves.
Hydraulic Stability in Silty Landscapes
Specific drainage and hydrologic classifications are unavailable for this county. However, the high silt and moderate clay levels suggest a soil that holds water well but may drain slowly. Site-specific testing is recommended before major construction to ensure proper drainage planning.
Ideal Conditions in Zone 8b
In hardiness zone 8b, Jefferson County’s milder pH and high water capacity are perfect for roses, fruit trees, and perennial vegetables. This soil is a strong performer that rewards the gardener with reliable growth. Start your planting journey today and enjoy the benefits of this fertile land.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Hydrologic group data not available.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Silt Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Jefferson County have?
Jefferson County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 20% sand, 60% silt, and 19% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Jefferson County's soil acidic or alkaline?
Jefferson County's soil has a pH of 5.8, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Jefferson County?
Drainage class data is not currently available for Jefferson County.
What crops or plants grow well in Jefferson County's soil?
Based on Jefferson County's Silt Loam texture, pH of 5.8, and drainage class, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens.
What USDA soil order is found in Jefferson County?
The dominant USDA soil order for Jefferson County is not currently available in our dataset.
Planning your lawn? View lawn care data for Jefferson County on LawnByCounty.com →
Other Counties in Mississippi
Soil data sourced from USDA SSURGO via Soil Data Access. Data is informational only and should not be used as a substitute for on-site soil testing. Contact your local NRCS office for site-specific soil information.