Knox County Soil Data
Knox County, Ohio
Avg pH
5.7
Texture
Loam
Drainage
N/A
Organic Matter
4.2%
Hydrologic Group
N/A
Data Story
About Soil in Knox County, Ohio
Knox County's acidic silt base
Knox County features an average pH of 5.71, which is more acidic than the state average of 5.97 and the national median of 6.5. While specific taxonomic orders are not classified here, the soil requires careful management to balance its chemistry. Maintaining proper pH is the first step for local growers to ensure plant health.
The fine touch of silty soil
This soil is almost half silt at 49.9%, paired with 30.9% sand and a light 16.2% clay content. The high silt and sand levels create a soil that is easy to till and work in the spring. However, the lower clay content means it may struggle to hold onto fertilizers compared to heavier soils.
Solid water capacity, average organic matter
Knox County holds an available water capacity of 0.180 in/in, nearing the state average of 0.186 in/in. The organic matter content stands at 4.15%, which is slightly lower than the Ohio average of 4.85% but still double the national average. This creates a reliable growing environment that holds moisture well during the summer.
Understanding Knox County's water flow
Dominant drainage classes are not currently mapped for this county's soil profile. Given the high silt and sand percentages, the soil likely offers decent natural aeration and moderate drainage. Farmers should monitor for erosion, as silty soils can be sensitive to runoff during heavy Ohio rains.
Spring planting in Zone 6a
The 6a hardiness zone supports a wide variety of cool-weather crops like kale, peas, and root vegetables. These silty soils are particularly friendly to carrots and potatoes that prefer fewer obstructions as they grow. Your Knox County garden is ready for a productive season with just a little organic compost.
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: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Knox County have?
Knox County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 31% sand, 50% silt, and 16% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Knox County's soil acidic or alkaline?
Knox County's soil has a pH of 5.7, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Knox County?
Drainage class data is not currently available for Knox County.
What crops or plants grow well in Knox County's soil?
Based on Knox County's Loam texture, pH of 5.7, 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 Knox County?
The dominant USDA soil order for Knox County is not currently available in our dataset.
Planning your lawn? View lawn care data for Knox County on LawnByCounty.com →
Other Counties in Ohio
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.