Sarpy County Soil Data
Sarpy County, Nebraska
USDA SSURGO / PHZMAvg pH
6.9
Texture
Silt Loam
Drainage
N/A
Organic Matter
2.3%
Hydrologic Group
N/A
Data Story
About Soil in Sarpy County, Nebraska
Neutral Soils in a Developing Region
Sarpy County features a very balanced pH of 6.93, which is slightly higher than the national median of 6.5 and the state average of 6.79. This nearly neutral chemical profile is excellent for a wide variety of plants. It supports both agricultural uses and suburban landscaping efforts.
The Silt-Dominant Foundation
The soil is comprised of 56.2% silt and 25.2% clay, resulting in a smooth, productive texture. With only 18.6% sand, the soil retains its shape and moisture well without being overly gritty. This mix is common in the Missouri River valley areas of the state.
Balanced Organic Matter and Storage
Organic matter averages 2.27%, which stays above the national average of 2.0% but below the state’s 3.32%. The available water capacity is 0.184 in/in, outperforming the state average of 0.172. This provides a reliable buffer for plants during periods of low rainfall.
Consistent Moisture for Urban Landscapes
While specific drainage and hydrologic data are missing, the silt-heavy composition generally allows for steady, predictable water movement. These soils are reliable for home building and gardening because they don't dry out too rapidly. They provide a stable medium for the county's growing infrastructure.
Garden Success in Zone 6a
Sarpy County's 6a hardiness zone is perfect for everything from turfgrass to vegetable gardens and orchards. The neutral pH means you can plant immediately with very few chemical adjustments. It is a fantastic place to start a backyard garden or maintain a lush lawn.
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: Silt Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Soil Amendment Products
Browse products to improve your soil health and lawn performance.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Sarpy County have?
Sarpy County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 19% sand, 56% silt, and 25% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Sarpy County's soil acidic or alkaline?
Sarpy 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 Sarpy County?
Drainage class data is not currently available for Sarpy County.
What crops or plants grow well in Sarpy County's soil?
Based on Sarpy County's Silt 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 Sarpy County?
The dominant USDA soil order for Sarpy County is not currently available in our dataset.
Soil & Planting Advisory: Sarpy County
Soil Verdict
Sarpy County is in USDA hardiness zone 6a, a moderate climate zone. where winter lows can reach -10°F. Freeze-thaw cycles are moderate; soil biology slows in winter but recovers reliably in spring, supporting a broad range of plants.
Planting Guidance
A wide plant palette is possible: deciduous trees, most shrubs, cool-season vegetables, and many perennials thrive here. Winter protection (mulch, burlap wraps) helps push the zone boundary for desired species. 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
Moderate freeze-thaw cycles naturally aerate the soil but can also cause compaction in clay-heavy areas; annual core aeration is beneficial. Organic matter amendments decompose at a moderate pace — aim for 3-5% organic content for optimal fertility. When soil temperatures drop below freezing, microbial nitrogen cycling stops; spring fertilization is more effective than late-fall application.
Regional Context
Sarpy County is somewhat warmer than the Nebraska statewide average. The zone range of 5b-6a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Sarpy County on LawnByCounty.com →
Other Counties in Nebraska
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.