Cotton County, Oklahoma

Survey Area OK033• Oklahoma

The dominant drainage class is Well drained and the dominant hydrologic group is D (very slow infiltration, high runoff). The most common soil order is Mollisols — grassland soils with a thick, dark, fertile topsoil rich in organic matter. This report summarizes the major soil map units across the survey area to help you understand what to expect when buying, building, or gardening in Cotton County, Oklahoma. Search your address to find the exact soil composition, drainage, and series details at your specific location.

Soil Map Unit	Acres	Drainage	Hydro Group	Dwellings	Septic
Tillman-Foard complex, 1 to 3 percent slopes	60K	Well drained	C	Very limited	Very limited
Foard silt loam, 0 to 1 percent slopes	52K	Well drained	D	Very limited	Not limited
Vernon-Knoco complex, 3 to 12 percent slopes	47K	Well drained	D	Very limited	Very limited
Zaneis-Huska complex, 1 to 3 percent slopes	29K	Well drained	B	Not limited	Somewhat limited
Port clay loam, 0 to 1 percent slopes, occasionally flooded	26K	Well drained	B	Very limited	Very limited
Vernon clay, 3 to 5 percent slopes	24K	Well drained	D	Very limited	Very limited
Zaneis-Grainola-Lucien complex, 5 to 20 percent slopes	16K	Well drained	D	Very limited	Very limited
Foard-Hinkle complex, 1 to 3 percent slopes	14K	Moderately well drained	D	Very limited	Very limited
Lincoln loamy fine sand, 0 to 1 percent slopes, frequently flooded	14K	Somewhat excessively drained	A	Very limited	Very limited
Port-Oscar complex, 0 to 1 percent slopes, occasionally flooded	13K	Well drained	B	Very limited	Very limited
Port loam, 0 to 1 percent slopes, occasionally flooded	12K	Well drained	B	Very limited	Very limited
Miller clay, 0 to 1 percent slopes, occasionally flooded	12K	Moderately well drained	D	Very limited	Very limited
Port loam, 0 to 1 percent slopes, frequently flooded	12K	Well drained	B	Very limited	Very limited
Zaneis loam, 1 to 3 percent slopes	11K	Well drained	B	Somewhat limited	Somewhat limited
Water	10K		D	Not rated	Not rated
Foard-Hinkle complex, 0 to 1 percent slopes	6K	Well drained	D	Very limited	Not limited
Lawton loam, 1 to 3 percent slopes	6K	Well drained	C	Somewhat limited	Very limited
Tillman silt loam, 1 to 3 percent slopes	5K	Well drained	C	Very limited	Very limited
Minco very fine sandy loam, 0 to 1 percent slopes	5K	Well drained	B	Not limited	Somewhat limited
Eda and Tivoli soils, 3 to 12 percent slopes	5K	Somewhat excessively drained	A	Somewhat limited	Very limited

Soil Orders in This Area

The USDA classifies every soil into one of 12 soil orders. Here are the dominant orders found in this survey area.

Mollisols

Fertile grassland soils with thick, dark topsoil. Among the best for agriculture, building, and gardening.

Inceptisols

Young but developing soils found in mountains and river terraces. Variable properties — check drainage and bedrock depth.

Entisols

Young soils with little development — found on floodplains, dunes, and steep slopes. Properties vary widely by setting.

What This Means

Building & Foundations

About 82% of soils are rated "very limited" for dwellings with basements. Specific challenges include shallow bedrock, flood-prone areas. A geotechnical assessment is recommended before building.

Septic Systems

About 70% of soils are rated "very limited" for septic absorption fields. Despite good drainage overall, limitations may stem from shallow bedrock, steep slopes, or seasonal conditions. Engineered or alternative systems are frequently required. Always get a professional perc test before purchasing land that needs septic.

Gardening & Agriculture

Drainage is generally favorable for gardening. Adding compost and mulch will improve fertility and water retention. Test your soil's pH before planting — most vegetables prefer 6.0-7.0.