Roger Mills County Soil Data
Roger Mills County, Oklahoma
Avg pH
6.8
Texture
Water
Drainage
N/A
Organic Matter
1.1%
Hydrologic Group
D
Data Story
About Soil in Roger Mills County, Oklahoma
Roger Mills County's Slightly Alkaline Soil Profile
The county features an average pH of 6.81, which is notably higher than the national median of 6.5 and the Oklahoma average of 6.06. While specific taxonomic data is limited, the soil score of 31.6 reflects a challenging environment for some high-yield crops. Gardeners here manage a profile that leans more alkaline than most of the state.
Sand Dominates the County Landscape
Sand makes up 55.5% of the soil, paired with 27.2% silt and a low 12.7% clay content. This high sand percentage ensures the soil remains easy to work and resists compaction. However, the low clay level means nutrients can leach away quickly during heavy rains.
Navigating Lean Organic Matter Content
Organic matter stands at 1.07%, trailing behind the Oklahoma average of 1.72% and the national average of 2.0%. The available water capacity is 0.132 in/in, indicating the soil holds less moisture than the state average of 0.144 in/in. Focused composting is essential to improve these fertility metrics.
Slow Internal Water Movement Challenges
This county falls into Hydrologic Group D, which typically signals high runoff potential and slow infiltration. While the specific drainage class remains unrecorded, the sand-heavy texture usually provides some surface relief. Builders and farmers must plan for surface water management to avoid erosion.
Successful Gardening in Hardiness Zone 7a
Roger Mills County sits in USDA Hardiness Zone 7a, perfect for heat-tolerant vegetables and native grasses. The sandy, alkaline soil supports drought-resistant species like lavender, okra, and southern peas. Starting a garden here requires regular mulching to preserve the limited water capacity.
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: Water
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Roger Mills County have?
Roger Mills County's soil is classified as Water. This indicates the relative proportions of sand, silt, and clay — 56% sand, 27% silt, and 13% clay. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Roger Mills County's soil acidic or alkaline?
Roger Mills County's soil has a pH of 6.8, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for Roger Mills County?
Drainage class data is not currently available for Roger Mills County.
What crops or plants grow well in Roger Mills County's soil?
Based on Roger Mills County's Water texture, pH of 6.8, and drainage class, the soil is well suited for vegetables, grains, and most field crops.
What USDA soil order is found in Roger Mills County?
The dominant USDA soil order for Roger Mills County is not currently available in our dataset.
Planning your lawn? View lawn care data for Roger Mills County on LawnByCounty.com →
Other Counties in Oklahoma
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.