Choctaw County Soil Data
Choctaw County, Oklahoma
Avg pH
6.0
Texture
Water
Drainage
N/A
Organic Matter
1.4%
Hydrologic Group
D
Data Story
About Soil in Choctaw County, Oklahoma
Acidic soils typical of the region
Choctaw County soils have an average pH of 5.99, which sits just below the state average of 6.06. This level is moderately acidic compared to the national median of 6.5, meaning some pH adjustment is often needed for optimal crop yields. The overall soil score of 35.1 is right in line with the Oklahoma state average.
Higher clay content for better structure
The soil contains 23.9% clay, which is higher than many neighboring counties, along with 39.5% sand. This relatively high clay content helps the soil retain nutrients and provides better physical structure for plant roots. However, it can also make the soil more difficult to till when it is either too wet or too dry.
Average water capacity and organic matter
Organic matter content is 1.40%, slightly lower than the state average of 1.72% and the national benchmark of 2.0%. The available water capacity perfectly matches the state average at 0.144 in/in. This means the soil provides a reliable, standard baseline for agricultural productivity in the region.
Slow drainage and high runoff
Falling into Hydrologic Group D, the soil in this county has a very slow infiltration rate when saturated. This can lead to significant surface runoff during the heavy rain events common to Southeastern Oklahoma. Managing water through terracing or drainage ditches is often necessary for large-scale farming.
Warm weather crops in zone 8a
Hardiness zone 8a allows for a very long growing season, giving gardeners plenty of time to harvest heat-loving crops. Peas, beans, and corn all perform well in these soils with regular moisture management. It is a great location for starting a home garden or even a small fruit orchard.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group D — High Runoff
Clay soils with very slow infiltration rates. Highest runoff potential. These soils have a permanent high water table or are shallow over impervious material.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Water
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Choctaw County have?
Choctaw County's soil is classified as Water. This indicates the relative proportions of sand, silt, and clay — 39% sand, 30% silt, and 24% clay. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Choctaw County's soil acidic or alkaline?
Choctaw County's soil has a pH of 6.0, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Choctaw County?
Drainage class data is not currently available for Choctaw County.
What crops or plants grow well in Choctaw County's soil?
Based on Choctaw County's Water texture, pH of 6.0, and drainage class, the soil is well suited for vegetables, grains, and most field crops.
What USDA soil order is found in Choctaw County?
The dominant USDA soil order for Choctaw County is not currently available in our dataset.
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Other Counties in Oklahoma
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.