DeWitt County Soil Data
DeWitt County, Texas
Avg pH
7.2
Texture
Sandy Loam
Drainage
N/A
Organic Matter
1.6%
Hydrologic Group
D
Data Story
About Soil in DeWitt County, Texas
Slightly alkaline coastal plain soils
DeWitt County soils have an average pH of 7.22, placing them just above the state average of 7.09 and the national median of 6.5. This slight alkalinity is typical for the transitioned coastal plains of South-Central Texas.
High sand content for light texture
The soil is comprised of 54.5% sand, 21.3% silt, and 24.1% clay. This high sand percentage creates a light, easy-to-till soil that warms up quickly in the spring sun.
Healthy organic matter near state levels
The organic matter content is 1.63%, nearly matching the Texas state average of 1.66%. The available water capacity is 0.130 in/in, which is essentially on par with the statewide average of 0.133 in/in.
Slow infiltration despite sandy texture
The soil falls into hydrologic group D, which indicates a low rate of water transmission despite the high sand content. This suggests that subsurface layers may be more restrictive to water movement than the surface suggests.
Heat-resilient crops for Zone 9a
In the warm Zone 9a climate, citrus and heat-loving herbs thrive in these sandy soils. Gardeners can take advantage of the long growing season to produce multiple harvests of peppers and beans.
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 DeWitt County have?
DeWitt County's soil is classified as Sandy Loam. This indicates the relative proportions of sand, silt, and clay — 55% sand, 21% silt, and 24% clay. Loamy soils hold moisture well and support a wide range of plants.
Is DeWitt County's soil acidic or alkaline?
DeWitt County's soil has a pH of 7.2, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for DeWitt County?
Drainage class data is not currently available for DeWitt County.
What crops or plants grow well in DeWitt County's soil?
Based on DeWitt County's Sandy Loam texture, pH of 7.2, 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 DeWitt County?
The dominant USDA soil order for DeWitt County is not currently available in our dataset.
Planning your lawn? View lawn care data for DeWitt 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.