Lincoln County Soil Data
Lincoln County, Oklahoma
Avg pH
6.1
Texture
Clay
Drainage
Very poorly drained
Organic Matter
1.5%
Hydrologic Group
D
Data Story
About Soil in Lincoln County, Oklahoma
Lincoln County's Deep Mollisols Heritage
Lincoln County is defined by Mollisols, the nutrient-rich soils typically found under grasslands. Its average pH of 6.08 is slightly more acidic than the national median of 6.5 but remains near the Oklahoma state average of 6.06. This clay-dominant profile provides a sturdy foundation for the local ecosystem.
A Heavy Clay Balance
The soil contains 41.3% sand and 19.7% clay, creating a heavy texture that can be difficult to till. While the 31.1% silt adds some smoothness, the high clay content means the soil is prone to compaction. Gardeners should focus on aeration to maintain healthy root systems.
High Water Storage Capacity
The organic matter level sits at 1.48%, which is slightly below the state average of 1.72%. However, the available water capacity of 0.152 in/in exceeds the state average of 0.144 in/in. This means the soil is exceptionally good at holding onto moisture during dry Oklahoma summers.
Managing Poor Drainage Challenges
Classified as very poorly drained with a Hydrologic Group D rating, this soil has a high runoff potential. Water tends to move very slowly through the profile, which can lead to standing water after heavy rains. Site selection for buildings and gardens must account for this limited natural drainage.
Lush Growth in Zone 7b
With its high water retention and hardiness zone 7b climate, Lincoln County is ideal for native prairie grasses and deep-rooted perennials. Sunflowers and legumes thrive in these Mollisols with minimal intervention. Start your garden today to take advantage of this reliable moisture reservoir.
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
Very poorly drained
Water is removed so slowly that free water remains at or on the surface most of the year. Typically wetland soils.
Soil Profile
Dominant texture: Clay
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Lincoln County have?
Lincoln County's soil is classified as Clay. This indicates the relative proportions of sand, silt, and clay — 41% sand, 31% silt, and 20% clay. Clay soils retain water and nutrients but can have drainage challenges.
Is Lincoln County's soil acidic or alkaline?
Lincoln County's soil has a pH of 6.1, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Lincoln County?
Lincoln County has a dominant drainage class of "Very poorly drained." Poorly drained soils retain water for extended periods, which can limit crop choices and may require tile drainage or raised beds.
What crops or plants grow well in Lincoln County's soil?
Based on Lincoln County's Clay texture, pH of 6.1, and Very poorly drained, the soil is well suited for vegetables, grains, and most field crops, wetland plants and crops tolerant of slow drainage, rice, cranberries, and other water-tolerant species.
What USDA soil order is found in Lincoln County?
Lincoln County's dominant soil order is Mollisols. Mollisols are fertile, dark-colored soils that formed under grassland vegetation. They are among the most productive agricultural soils in the world.
Planning your lawn? View lawn care data for Lincoln 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.