Grayson County Soil Data
Grayson County, Kentucky
Avg pH
5.6
Texture
Silt Loam
Drainage
N/A
Organic Matter
2.0%
Hydrologic Group
N/A
Data Story
About Soil in Grayson County, Kentucky
Western Coalfield Soil Identity
The average pH in Grayson County is 5.58, making it slightly more acidic than the Kentucky average of 5.80. This acidic profile is common across the state but remains well under the national median of 6.5.
A Balanced Mix with Clay Influence
With 59.4% silt and 23.7% clay, these soils are heavier and denser than those in neighboring counties. The 16.9% sand component provides a necessary break in the texture to assist with root penetration.
Hitting the National Fertility Mark
Organic matter levels reach 2.00%, matching the national average but trailing the state average of 3.55%. The available water capacity of 0.185 in/in aligns almost perfectly with the Kentucky state benchmark.
Managing Heavier Ground
The relatively high clay content suggests that drainage might be slower than in sandy regions. Homeowners should consider raised beds or surface drainage improvements to manage the soil's natural density.
Planting Prospects in Zone 7a
Grayson County's Zone 7a climate supports everything from tobacco to hardy fruit trees. Leverage the reliable water capacity of this soil to grow high-quality produce all season long.
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 Grayson County have?
Grayson County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 17% sand, 59% silt, and 24% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Grayson County's soil acidic or alkaline?
Grayson County's soil has a pH of 5.6, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Grayson County?
Drainage class data is not currently available for Grayson County.
What crops or plants grow well in Grayson County's soil?
Based on Grayson County's Silt Loam texture, pH of 5.6, 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 Grayson County?
The dominant USDA soil order for Grayson County is not currently available in our dataset.
Planning your lawn? View lawn care data for Grayson County on LawnByCounty.com →
Other Counties in Kentucky
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.