Stephens County Soil Data
Stephens County, Oklahoma
Avg pH
5.8
Texture
Water
Drainage
N/A
Organic Matter
1.6%
Hydrologic Group
D
Data Story
About Soil in Stephens County, Oklahoma
Stephens County's Mildly Acidic Identity
The soil pH in Stephens County averages 5.83, which is closer to the state average of 6.06 than many eastern counties. However, it remains more acidic than the national median of 6.5. This pH level is generally manageable for most regional agricultural practices with minimal intervention.
A Balanced Mix of Sand and Silt
The soil is comprised of 44.7% sand, 27.6% silt, and 16.8% clay. This texture provides a stable medium that allows for decent aeration while retaining some moisture. It is a versatile mix that supports both grazing lands and residential landscaping.
Meeting the State Average for Water
The available water capacity is 0.144 in/in, matching the Oklahoma state average exactly. Organic matter levels reach 1.57%, which is just below the state norm of 1.72%. With a soil score of 34.7, the county is nearly on par with the statewide productivity average of 35.3.
Infiltration Challenges in Group D
Stephens County soil falls into Hydrologic Group D, suggesting limited water infiltration and high runoff. This classification is common in the region and implies that the soil may stay saturated for long periods after rain. Farmers should monitor for erosion, especially on sloped terrains.
Warmth and Growth in Zone 8a
As part of Hardiness Zone 8a, Stephens County enjoys a very long growing season and mild winters. This climate is ideal for okra, cotton, and various fruit trees that require a long heat window. The soil's balanced water capacity makes it an excellent candidate for a productive backyard garden.
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 Stephens County have?
Stephens County's soil is classified as Water. This indicates the relative proportions of sand, silt, and clay — 45% sand, 28% silt, and 17% clay. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Stephens County's soil acidic or alkaline?
Stephens County's soil has a pH of 5.8, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Stephens County?
Drainage class data is not currently available for Stephens County.
What crops or plants grow well in Stephens County's soil?
Based on Stephens County's Water texture, pH of 5.8, and drainage class, the soil is well suited for vegetables, grains, and most field crops.
What USDA soil order is found in Stephens County?
The dominant USDA soil order for Stephens County is not currently available in our dataset.
Planning your lawn? View lawn care data for Stephens County on LawnByCounty.com →
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.