Crawford County Soil Data
Crawford County, Arkansas
USDA SSURGO / PHZMAvg pH
5.6
Texture
Loam
Drainage
N/A
Organic Matter
1.9%
Hydrologic Group
D
Data Story
About Soil in Crawford County, Arkansas
Acidic soils define Crawford’s landscape
Crawford County soils measure an average pH of 5.64, which is notably more acidic than the national median of 6.5. This acidity aligns closely with the Arkansas state average of 5.56. While specific taxonomic data is limited, these levels generally require lime amendments for most garden crops.
A sandy foundation for local land
The soil features a high sand content of 47.6%, balanced by 37.8% silt and 14.6% clay. This mix creates a workable texture that allows for easy root penetration but may lose moisture quickly. Farmers here manage a profile that prioritizes aeration over heavy nutrient storage.
Modest organic matter and water capacity
Organic matter sits at 1.94%, falling well below the state average of 4.15%. Available water capacity reaches 0.133 in/in, slightly trailing the state benchmark of 0.148 in/in. Growers often supplement these soils to boost productivity and moisture retention.
Slow infiltration and high runoff potential
The county belongs to hydrologic group D, which indicates very slow infiltration rates when the soil is thoroughly wet. This classification suggests a high risk of surface runoff and potential for temporary ponding. Builders and farmers must plan for drainage challenges during heavy Arkansas rains.
Thriving in hardiness zone 7b
Crawford County falls within USDA hardiness zone 7b, supporting a wide range of fruit and vegetable crops. Blueberries and strawberries perform exceptionally well in these acidic, sandy conditions. Start your garden today by focusing on acid-loving perennials that thrive in the local climate.
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
Acidic Soil Detected
Your county's average pH is 5.6. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Crawford County have?
Crawford County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 48% sand, 38% silt, and 15% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Crawford County's soil acidic or alkaline?
Crawford County's soil has a pH of 5.6, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Crawford County?
Drainage class data is not currently available for Crawford County.
What crops or plants grow well in Crawford County's soil?
Based on Crawford County's Loam texture, pH of 5.6, 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 Crawford County?
The dominant USDA soil order for Crawford County is not currently available in our dataset.
Soil & Planting Advisory: Crawford County
Soil Verdict
Crawford 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
Crawford County is somewhat cooler than the Arkansas statewide average. The zone range of 7b-8a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Crawford County on LawnByCounty.com →
Other Counties in Arkansas
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.