Coleman County Soil Data
Coleman County, Texas
Avg pH
7.3
Texture
Fine sandy loam
Drainage
Well drained
Organic Matter
1.8%
Hydrologic Group
C
Data Story
About Soil in Coleman County, Texas
Coleman's Productive Fine Sandy Loams
This county is dominated by Alfisol soils with a fine sandy loam texture and an average pH of 7.26. This alkaline profile sits above the national median of 6.5 but remains suitable for most regional agriculture.
High Silt and Clay Balance
A mix of 38.3% sand, 30.3% silt, and 27.2% clay provides a heavy enough texture to hold nutrients without becoming unworkable. The high silt content compared to neighbors improves the soil's overall silky feel and water retention.
Strong Organic Matter Performance
Coleman County boasts 1.84% organic matter, beating the state average of 1.66% by a healthy margin. Its available water capacity of 0.142 in/in also exceeds the state norm, signaling superior drought resistance.
Efficient Water Management
The land is well drained, ensuring that oxygen reaches roots even after heavy rains. It falls into hydrologic group C, which means moderate infiltration rates that help manage water flow across the rolling plains.
Planting Success in Zone 8a
Your 8a climate is perfect for heat-tolerant vegetables and native grasses. Use this high-capacity soil to establish a productive home garden or small orchard this season.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group C — Moderate-High Runoff
Soils with slow infiltration rates, often with a layer that impedes downward water movement. Higher clay content restricts drainage.
Drainage Class
Well drained
Water is removed from the soil readily but not rapidly. Optimal for most plants and construction.
Soil Profile
Dominant texture: Fine sandy loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Coleman County have?
Coleman County's soil is classified as Fine sandy loam. This indicates the relative proportions of sand, silt, and clay — 38% sand, 30% silt, and 27% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Coleman County's soil acidic or alkaline?
Coleman County's soil has a pH of 7.3, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for Coleman County?
Coleman County has a dominant drainage class of "Well drained." Well-drained soils allow excess water to move through quickly, reducing waterlogging risk and supporting most field and garden crops.
What crops or plants grow well in Coleman County's soil?
Based on Coleman County's Fine sandy loam texture, pH of 7.3, and Well drained, the soil is well suited for drought-tolerant crops and native grasses, row crops and vegetable gardens, most annual and perennial crops.
What USDA soil order is found in Coleman County?
Coleman County's dominant soil order is Alfisols. Alfisols are moderate to high base-status soils with a clay-enriched subsoil. They support productive forests and cropland across temperate regions.
Planning your lawn? View lawn care data for Coleman County on LawnByCounty.com →
Other Counties in Texas
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.