Floyd County Soil Data
Floyd County, Texas
USDA SSURGO / PHZMAvg pH
7.6
Texture
Loam
Drainage
N/A
Organic Matter
1.4%
Hydrologic Group
D
Data Story
About Soil in Floyd County, Texas
Alkaline Plains of Floyd County
The soil in Floyd County is highly alkaline, with an average pH of 7.62. This sits well above the national median of 6.5 and exceeds the Texas average of 7.09. Data on the specific taxonomic order remains limited for this region.
Balanced Sands and Silts
The composition is dominated by 51.0% sand, complemented by 25.7% silt and 22.4% clay. This mixture suggests a texture that is relatively easy to work while maintaining some structure. The high sand percentage helps with aeration in the semi-arid High Plains environment.
Steady Moisture Storage for the Panhandle
Organic matter stands at 1.44%, which is slightly below the state average of 1.66%. However, the available water capacity of 0.137 in/in is better than the Texas average. This helps crops survive the unpredictable rainfall patterns of the region.
High Runoff Risk on Flat Ground
Floyd County belongs to hydrologic group D, which indicates a high potential for water runoff. When heavy rains do arrive, the soil surface can seal quickly, preventing deep water penetration. Careful land leveling and terracing are often used here to capture every drop of moisture.
Gardening in Hardiness Zone 7b
The cooler winters of Zone 7b allow for a variety of hardy crops and traditional High Plains agriculture. High-pH tolerant plants are your best bet for a successful home garden in this environment. Despite a soil score of 21.6, dedicated soil building can lead to impressive yields.
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: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Alkaline Soil Detected
Your county's average pH is 7.6. These products help acidify soil for better nutrient uptake.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Floyd County have?
Floyd County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 51% sand, 26% silt, and 22% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Floyd County's soil acidic or alkaline?
Floyd 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 Floyd County?
Drainage class data is not currently available for Floyd County.
What crops or plants grow well in Floyd County's soil?
Based on Floyd County's 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 Floyd County?
The dominant USDA soil order for Floyd County is not currently available in our dataset.
Soil & Planting Advisory: Floyd County
Soil Verdict
Floyd County is in USDA hardiness zone 7b, a moderate climate zone. where winter lows can reach 5°F. Mild winters mean soil rarely freezes deeply, allowing year-round microbial activity and faster organic matter breakdown.
Planting Guidance
Warm-season crops, citrus relatives, and heat-loving ornamentals do well. Cool-season vegetables should be planted in fall and winter. 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
Warm soils accelerate organic matter breakdown, so compost and mulch need replenishing more frequently than in cooler zones. Sandy soils common in warm zones drain quickly; water-retentive amendments like compost or peat help hold moisture.
Regional Context
Floyd County is somewhat cooler than the Texas statewide average.
Planning your lawn? View lawn care data for Floyd 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.