Pulaski County Soil Data
Pulaski County, Illinois
Avg pH
6.1
Texture
Silt loam
Drainage
Well drained
Organic Matter
1.8%
Hydrologic Group
C
Data Story
About Soil in Pulaski County, Illinois
Rich Silt Loams of the Deep South
Pulaski County is defined by its Alfisols and an average pH of 6.14, which is more acidic than the state average of 6.39. This silt loam texture provides a classic foundation for agriculture in the state's southernmost region.
Classic Texture for Farm and Garden
The soil includes 65.0% silt, 22.0% clay, and 13.0% sand, creating a versatile silt loam profile. This balance offers excellent workability while maintaining enough clay to hold onto vital plant nutrients.
Superior Moisture for Hot Summers
Organic matter levels reach 1.79%, trailing the state average of 2.94%. Conversely, the available water capacity of 0.207 in/in is higher than the state average, giving plants a crucial edge during the hot summer months.
Well-Drained and Ready to Build
Classified as well-drained and part of hydrologic group C, this soil moves water more efficiently than many neighboring counties. This makes the land particularly suitable for infrastructure and reduces the risk of plant root rot.
Heat-Tolerant Crops Thrive Here
Hardiness zone 7a grants Pulaski County a lengthy growing season, perfect for heat-tolerant varieties like sweet potatoes and okra. The well-drained silt loam is a major asset for any gardener looking to maximize their annual harvest.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group C — Moderate-High Runoff
Soils with slow infiltration rates, often with a layer that impedes downward water movement. Higher clay content restricts drainage.
Drainage Class
Well drained
Water is removed from the soil readily but not rapidly. Optimal for most plants and construction.
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 Pulaski County have?
Pulaski County's soil is classified as Silt loam. This indicates the relative proportions of sand, silt, and clay — 13% sand, 65% silt, and 22% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Pulaski County's soil acidic or alkaline?
Pulaski County's soil has a pH of 6.1, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Pulaski County?
Pulaski County has a dominant drainage class of "Well drained." Well-drained soils allow excess water to move through quickly, reducing waterlogging risk and supporting most field and garden crops.
What crops or plants grow well in Pulaski County's soil?
Based on Pulaski County's Silt loam texture, pH of 6.1, and Well drained, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens, most annual and perennial crops.
What USDA soil order is found in Pulaski County?
Pulaski County's dominant soil order is Alfisols. Alfisols are moderate to high base-status soils with a clay-enriched subsoil. They support productive forests and cropland across temperate regions.
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Other Counties in Illinois
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.