Goliad County Soil Data
Goliad County, Texas
USDA SSURGO / PHZMAvg pH
7.1
Texture
Sandy Loam
Drainage
N/A
Organic Matter
1.8%
Hydrologic Group
D
Data Story
About Soil in Goliad County, Texas
Neutral Sands of the Coastal Plain
Goliad County has a nearly neutral average pH of 7.06, slightly above the national median of 6.5. While detailed taxonomic data is not available, this pH level is excellent for a wide variety of Texas plants. It creates a flexible foundation for the county's varied agricultural needs.
Sand-Heavy Mix for Rapid Drainage
The soil is 59.1% sand, 19.3% silt, and 21.6% clay. This high sand percentage means water moves quickly through the top layers, reducing the risk of waterlogged roots. However, it also means nutrients can wash away faster than in heavier soils.
Healthy Organic Matter Levels
Organic matter is strong at 1.83%, surpassing the Texas state average of 1.66%. The available water capacity of 0.131 in/in is nearly on par with the state average of 0.133 in/in. These balanced metrics support a thriving natural ecosystem and productive gardens.
Hydrologic Group D Challenges
Goliad County is categorized in hydrologic group D, which indicates a very slow infiltration rate in the deeper profile. This creates a high potential for surface runoff during heavy coastal rains. Homeowners and builders should plan for effective water diversion to protect their property.
Heat-Loving Vegetables in Zone 9a
Hardiness Zone 9a is perfect for warm-season vegetables and coastal grasses. The neutral pH and high organic matter provide a great environment for home vegetable patches to succeed. Dig in today and enjoy the benefits of Goliad's long, warm growing season.
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
Sandy Soil Detected
Sandy soils drain quickly and can dry out. These products boost water retention and organic matter.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Goliad County have?
Goliad County's soil is classified as Sandy Loam. This indicates the relative proportions of sand, silt, and clay — 59% sand, 19% silt, and 22% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Goliad County's soil acidic or alkaline?
Goliad County's soil has a pH of 7.1, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for Goliad County?
Drainage class data is not currently available for Goliad County.
What crops or plants grow well in Goliad County's soil?
Based on Goliad County's Sandy Loam texture, pH of 7.1, 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 Goliad County?
The dominant USDA soil order for Goliad County is not currently available in our dataset.
Soil & Planting Advisory: Goliad County
Soil Verdict
Goliad County is in USDA hardiness zone 9a, a warm climate zone. where winter lows can reach 20°F. Warm winters keep soil biology active nearly year-round, accelerating decomposition but increasing pest and disease pressure in topsoil.
Planting Guidance
Tropical and subtropical plants are viable. Year-round gardening is possible, though summer heat may limit some cool-season crops. Frost is rare; tender plants can overwinter with minimal protection. Always match plant selections to the specific microclimate of your property — low spots, slopes, and wind exposure can shift effective hardiness by half a zone.
Soil Implications
Rapid organic matter turnover means soils can become nutrient-poor quickly; test annually and fertilize based on results. High soil temperatures favor certain soilborne pathogens; practice crop rotation and avoid overwatering.
Regional Context
Goliad County is somewhat warmer than the Texas statewide average. The zone range of 9a-9b within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Goliad 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.