Andrews County Soil Data
Andrews County, Texas
Avg pH
7.6
Texture
Sandy Loam
Drainage
N/A
Organic Matter
1.7%
Hydrologic Group
D
Data Story
About Soil in Andrews County, Texas
Andrews County's Alkaline Profile
The soil in Andrews County is notably alkaline with an average pH of 7.62, higher than both the national median of 6.5 and the state average of 7.09. This basic environment can limit the availability of phosphorus and iron for some crops. Local growers often select plants that can tolerate these elevated calcium levels.
Sand-Heavy Western Terrain
The soil composition is 63.9% sand, 18.9% silt, and 17.2% clay. This high sand content provides excellent aeration but can lead to rapid nutrient leaching. It is a light soil that responds well to cultivation but dries out quickly without consistent moisture.
Healthy Organic Matter Levels
The soil contains 1.70% organic matter, which actually beats the Texas state average of 1.66%. Despite this, the available water capacity is low at 0.116 in/in, compared to the state average of 0.133. This combination means the soil holds nutrients well but struggles to retain enough water for long dry spells.
Hydrologic Realities in the West
Assigned to Hydrologic Group D, the land shows very slow infiltration rates when saturated. This can lead to surface runoff even in sandy areas if the soil becomes compacted or crusts over. Proper land grading is essential for both construction and irrigation efficiency.
High-Desert Growing in Zone 8a
Andrews County sits in Hardiness Zone 8a, supporting a variety of hardy perennials and shrubs. Drought-resistant species like lavender and desert willow perform exceptionally well in this sandy, alkaline ground. Local gardeners should prioritize water-wise plants to make the most of the region's unique soil.
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: Sandy Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Andrews County have?
Andrews County's soil is classified as Sandy Loam. This indicates the relative proportions of sand, silt, and clay — 64% sand, 19% silt, and 17% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Andrews County's soil acidic or alkaline?
Andrews County's soil has a pH of 7.6, which is mildly to moderately alkaline. Sulfur amendments can lower pH if needed.
What is the drainage class for Andrews County?
Drainage class data is not currently available for Andrews County.
What crops or plants grow well in Andrews County's soil?
Based on Andrews County's Sandy Loam texture, pH of 7.6, and drainage class, the soil is well suited for drought-tolerant crops and native grasses, row crops and vegetable gardens.
What USDA soil order is found in Andrews County?
The dominant USDA soil order for Andrews County is not currently available in our dataset.
Planning your lawn? View lawn care data for Andrews 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.