Jackson County Soil Data
Jackson County, Texas
USDA SSURGO / PHZMAvg pH
6.6
Texture
Sandy Loam
Drainage
N/A
Organic Matter
2.1%
Hydrologic Group
D
Data Story
About Soil in Jackson County, Texas
Neutral soils of the Gulf Coast
Jackson County has a soil pH of 6.64, which is nearly identical to the national median of 6.5. This is more acidic than the state average of 7.09, reflecting its position near the humid Gulf Coast. These neutral soils are highly sought after because they allow for maximum nutrient availability for most crops.
Sandy textures on the coastal plain
The soil is primarily sand at 52.5%, with 25.5% clay and 22.0% silt. This high sand content promotes rapid drainage in the upper soil profile and makes the earth easy to till. However, the significant clay fraction provides enough body to keep the soil from becoming overly loose or dry.
Rich organic matter for coastal farming
Organic matter is impressive at 2.10%, surpassing both the Texas average of 1.66% and the national average of 2.0%. While the available water capacity is slightly below state average at 0.124 in/in, the overall soil score is a high 44.5. This indicates very high potential for agricultural productivity and gardening success.
Managing high runoff potential
Jackson County falls into hydrologic group D, which means the soil has very low infiltration rates when saturated. In this coastal environment, heavy rainfall can lead to significant runoff and standing water. Drainage planning is a key consideration for both residential landscaping and large-scale agriculture.
Tropical vibes in Zone 9a
Located in USDA Hardiness Zone 9a, Jackson County is ideal for citrus, figs, and long-season vegetables. The high organic matter and neutral pH provide an incredible head start for any garden enthusiast. Start your own coastal oasis and enjoy the benefits of some of the state's best 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
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 Jackson County have?
Jackson County's soil is classified as Sandy Loam. This indicates the relative proportions of sand, silt, and clay — 52% sand, 22% silt, and 25% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Jackson County's soil acidic or alkaline?
Jackson County's soil has a pH of 6.6, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for Jackson County?
Drainage class data is not currently available for Jackson County.
What crops or plants grow well in Jackson County's soil?
Based on Jackson County's Sandy Loam texture, pH of 6.6, and drainage class, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens.
What USDA soil order is found in Jackson County?
The dominant USDA soil order for Jackson County is not currently available in our dataset.
Soil & Planting Advisory: Jackson County
Soil Verdict
Jackson 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
Jackson 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 Jackson 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.