Sioux County Soil Data
Sioux County, North Dakota
USDA SSURGO / PHZMAvg pH
6.9
Texture
Loam
Drainage
N/A
Organic Matter
3.6%
Hydrologic Group
N/A
Data Story
About Soil in Sioux County, North Dakota
Near Neutral pH in Sioux County
Sioux County features a pH of 6.92, which is remarkably close to the national median of 6.5. This near-neutral acidity makes it easier for plants to access essential nutrients compared to more alkaline neighbors.
A Versatile Earthy Blend
The soil composition is 42.5% sand and 36.0% silt, paired with 21.4% clay. This mix provides enough clay to hold nutrients while the sand ensures roots can breathe.
Moderate Fertility for Local Growth
Organic matter sits at 3.55%, which trails the North Dakota average of 4.69%. However, this still exceeds the national average of 2.0%, suggesting good long-term growing potential.
Steady Water Movement
While official hydrologic groups are not listed, the 0.181 available water capacity indicates reliable moisture storage. The balanced texture supports a variety of land uses from grazing to gardening.
Planting for the Plains
While zone data is limited, local conditions favor prairie-hardy species and resilient summer crops. Residents can achieve great results by focusing on soil health and native plantings.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Hydrologic group data not available.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Soil Amendment Products
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Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Sioux County have?
Sioux County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 43% sand, 36% silt, and 21% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Sioux County's soil acidic or alkaline?
Sioux County's soil has a pH of 6.9, which is near neutral. This range is ideal for most garden plants and field crops.
What is the drainage class for Sioux County?
Drainage class data is not currently available for Sioux County.
What crops or plants grow well in Sioux County's soil?
Based on Sioux County's Loam texture, pH of 6.9, 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 Sioux County?
The dominant USDA soil order for Sioux County is not currently available in our dataset.
Soil & Planting Advisory: Sioux County
Soil Verdict
Soil guidance for Sioux County is based on available regional data. where winter lows can reach undefined°F.
Planting Guidance
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
Soil biology and amendment needs vary with local conditions. A soil test from your extension office is the best starting point..
Regional Context
Comparative hardiness data for North Dakota counties is being compiled.
Planning your lawn? View lawn care data for Sioux County on LawnByCounty.com →
Other Counties in North Dakota
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.