Okmulgee County Soil Data
Okmulgee County, Oklahoma
Avg pH
5.4
Texture
Water
Drainage
N/A
Organic Matter
1.7%
Hydrologic Group
D
Data Story
About Soil in Okmulgee County, Oklahoma
Acidic Profiles in Okmulgee County
Okmulgee County soil has an average pH of 5.43, which is quite acidic compared to the national median of 6.5. This chemical profile is common in the eastern part of the state where higher rainfall can leach away alkaline minerals. While taxonomic data is limited, the chemistry suggests a need for acid-tolerant plant selections.
A Silt-Focused Soil Texture
The soil contains 36.9% silt, 34.7% sand, and 18.4% clay, making it a well-balanced loam. The high silt content gives the soil a smooth texture and helps it hold onto nutrients more effectively than purely sandy soils. It is a versatile mix that supports a variety of native grasses and timber.
Superior Water Retention Potential
At 1.73%, the organic matter in Okmulgee County exceeds the state average of 1.72%. The available water capacity is also high at 0.153 in/in, providing a great reservoir for plants during the hot summer months. This combination makes the soil naturally resilient and biologically active.
Water Management and Runoff Risks
Falling into hydrologic group D, the county's soil has a high runoff potential and very slow infiltration when saturated. This can lead to soggy conditions in low-lying areas after heavy Oklahoma rains. Landowners should prioritize drainage improvements when planning new buildings or gardens to avoid standing water.
Native Beauty in Zone 7b
The 7b hardiness zone and moisture-retentive soil are excellent for growing native pecans, oaks, and berries. It is a fantastic environment for acid-loving shrubs and perennial flowers that thrive in consistent moisture. Start your local garden today to take advantage of this fertile and water-rich soil foundation.
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 Okmulgee County have?
Okmulgee County's soil is classified as Water. This indicates the relative proportions of sand, silt, and clay — 35% sand, 37% silt, and 18% clay. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Okmulgee County's soil acidic or alkaline?
Okmulgee County's soil has a low pH of 5.4, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Okmulgee County?
Drainage class data is not currently available for Okmulgee County.
What crops or plants grow well in Okmulgee County's soil?
Based on Okmulgee County's Water texture, pH of 5.4, and drainage class, the soil is well suited for acid-loving plants like blueberries and azaleas.
What USDA soil order is found in Okmulgee County?
The dominant USDA soil order for Okmulgee County is not currently available in our dataset.
Planning your lawn? View lawn care data for Okmulgee 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.