Wayne County Soil Data
Wayne County, Iowa
USDA SSURGO / PHZMAvg pH
6.2
Texture
Silty Clay Loam
Drainage
N/A
Organic Matter
2.9%
Hydrologic Group
N/A
Data Story
About Soil in Wayne County, Iowa
Consistent Acid-Base Balance in Wayne
Wayne County's soil features an average pH of 6.25, which is typical for the region and slightly below the 6.5 national median. While specific taxonomic orders are not documented in the available data, this pH range is very hospitable for corn and soybeans. It represents a stable foundation for the county's agricultural economy.
A Balanced Clay-Silt Profile
The soil composition consists of 52.4% silt and a significant 27.8% clay fraction. With sand at 19.8%, the soil is relatively heavy, which helps it retain minerals and fertilizers effectively. This mix provides a sturdy medium for plant roots but may require power equipment to work efficiently.
State-Average Water Storage
The available water capacity in Wayne County is 0.195 in/in, matching the Iowa state average exactly. Organic matter is 2.94%, which is lower than the state's 3.81% but still provides plenty of energy for plant growth. This soil is reliable, providing a consistent supply of water during the growing season.
Navigating Clay-Heavy Drainage
With clay making up nearly 28% of the soil, natural drainage can be slower than in sandier regions. Although specific drainage classes are not listed, the high clay content often necessitates measures to prevent waterlogging. Homeowners should ensure proper downspout placement to keep foundations dry in this heavy soil.
Hardy Crops for Zone 5b
Wayne County sits in Zone 5b, making it suitable for standard Midwestern favorites like pumpkins and sunflowers. The reliable water capacity means your garden can withstand a few missed waterings during the summer. Start your seeds indoors to get a jump on the productive season.
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: Silty Clay Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Clay Soil Detected
Clay soils can struggle with drainage. These products improve soil structure and water flow.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Wayne County have?
Wayne County's soil is classified as Silty Clay Loam. This indicates the relative proportions of sand, silt, and clay — 20% sand, 52% silt, and 28% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Wayne County's soil acidic or alkaline?
Wayne County's soil has a pH of 6.2, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Wayne County?
Drainage class data is not currently available for Wayne County.
What crops or plants grow well in Wayne County's soil?
Based on Wayne County's Silty Clay Loam texture, pH of 6.2, 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 Wayne County?
The dominant USDA soil order for Wayne County is not currently available in our dataset.
Soil & Planting Advisory: Wayne County
Soil Verdict
Wayne County is in USDA hardiness zone 5b, a cold climate zone. where winter lows can reach -15°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
Wayne County closely matches the Iowa average hardiness conditions.
Planning your lawn? View lawn care data for Wayne County on LawnByCounty.com →
Other Counties in Iowa
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.