Adams County Soil Data
Adams County, Illinois
Avg pH
6.4
Texture
Silt Loam
Drainage
N/A
Organic Matter
2.1%
Hydrologic Group
N/A
Data Story
About Soil in Adams County, Illinois
A Slightly Acidic Foundation in Adams
Adams County soil maintains an average pH of 6.38, sitting just below the national median of 6.5 and nearly matching the Illinois state average. While specific taxonomic orders are not listed, this chemical profile supports a wide range of agricultural activity. The soil score of 72.9 indicates a solid, productive base for local growers.
Silt-Heavy Soils Define the Landscape
The earth here is composed of 64.9% silt, 21.8% clay, and a relatively low 13.3% sand. This heavy silt concentration creates a smooth texture that holds nutrients well but requires careful management to prevent compaction. Farmers benefit from the high clay-to-sand ratio which aids in moisture consistency.
Solid Water Retention and Organic Strength
With 2.14% organic matter, Adams County exceeds the national average of 2.0% even though it trails the state's high bar of 2.94%. The available water capacity (AWC) of 0.209 in/in is higher than the state average, meaning these fields store water more efficiently during dry spells. This combination provides a resilient environment for consistent crop yields.
Managing Water in Silty Fields
Though specific drainage class data is currently unavailable, the high silt and clay content suggests a soil that holds onto moisture tightly. The county's soil score of 72.9 reflects a landscape that manages water better than many regional neighbors. Proper tiling and conservation tillage help navigate the high available water capacity of 0.209 in/in.
Thriving in the Heart of Zone 6a
Hardiness zone 6a offers a versatile growing season for Adams County residents. The silt-rich soil is perfect for staple crops like corn and soybeans, but it also supports robust vegetable gardens and orchards. Start your planting in early spring to take full advantage of this fertile Illinois ground.
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 Adams County have?
Adams 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 Adams County's soil acidic or alkaline?
Adams County's soil has a pH of 6.4, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Adams County?
Drainage class data is not currently available for Adams County.
What crops or plants grow well in Adams County's soil?
Based on Adams County's Silt Loam texture, pH of 6.4, 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 Adams County?
The dominant USDA soil order for Adams County is not currently available in our dataset.
Planning your lawn? View lawn care data for Adams County on LawnByCounty.com →
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.