Scott County Soil Data
Scott County, Illinois
USDA SSURGO / PHZMAvg pH
6.5
Texture
Silt Loam
Drainage
N/A
Organic Matter
2.1%
Hydrologic Group
N/A
Data Story
About Soil in Scott County, Illinois
Neutral and Balanced Soil Chemistry
Scott County maintains a healthy soil pH of 6.52, which aligns closely with the national median of 6.5. This is slightly less acidic than the Illinois state average of 6.39, offering a versatile base for many plant species. Even without specific taxonomic data, the chemical profile suggests a highly productive environment.
Sandier Mix for Better Drainage
At 26.7% sand, Scott County has one of the higher sand concentrations in the region, paired with 54.1% silt and 19.2% clay. This extra sand provides better aeration and faster drainage than neighboring counties with heavier silt profiles. It makes the soil easier to work with early in the spring when other fields might be too wet.
Moderate Organic Matter and Water Storage
The soil contains 2.13% organic matter, surpassing the national average of 2.0%. However, the available water capacity of 0.189 in/in is lower than the state average of 0.204. While this means the soil may dry out faster, it also warms up more quickly for early planting.
Fast-Warming Soils with Active Hydrology
While specific drainage classes are unavailable, the 26.7% sand content suggests a more active hydrologic group than typical Illinois silt-loams. This composition allows for better vertical water movement, reducing the risk of standing water in gardens. It is a preferred profile for crops that dislike 'wet feet' or stagnant conditions.
Early Starts Possible in Zone 6a
Zone 6a weather and sandier soil mean Scott County gardeners can often plant earlier than their neighbors. The soil is excellent for melons, asparagus, and other crops that thrive in well-drained, warmer ground. It is time to get outside and take advantage of this workable, neutral soil.
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
Soil Amendment Products
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Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Scott County have?
Scott County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 27% sand, 54% silt, and 19% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Scott County's soil acidic or alkaline?
Scott County's soil has a pH of 6.5, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for Scott County?
Drainage class data is not currently available for Scott County.
What crops or plants grow well in Scott County's soil?
Based on Scott County's Silt Loam texture, pH of 6.5, 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 Scott County?
The dominant USDA soil order for Scott County is not currently available in our dataset.
Soil & Planting Advisory: Scott County
Soil Verdict
Scott County is in USDA hardiness zone 6a, a moderate climate zone. where winter lows can reach -10°F. Freeze-thaw cycles are moderate; soil biology slows in winter but recovers reliably in spring, supporting a broad range of plants.
Planting Guidance
A wide plant palette is possible: deciduous trees, most shrubs, cool-season vegetables, and many perennials thrive here. Winter protection (mulch, burlap wraps) helps push the zone boundary for desired species. Always match plant selections to the specific microclimate of your property — low spots, slopes, and wind exposure can shift effective hardiness by half a zone.
Soil Implications
Moderate freeze-thaw cycles naturally aerate the soil but can also cause compaction in clay-heavy areas; annual core aeration is beneficial. Organic matter amendments decompose at a moderate pace — aim for 3-5% organic content for optimal fertility. When soil temperatures drop below freezing, microbial nitrogen cycling stops; spring fertilization is more effective than late-fall application.
Regional Context
Scott County closely matches the Illinois average hardiness conditions.
Planning your lawn? View lawn care data for Scott 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.