Waukesha County Soil Data
Waukesha County, Wisconsin
Avg pH
6.2
Texture
Fine sandy loam
Drainage
Very poorly drained
Organic Matter
5.9%
Hydrologic Group
A/D
Data Story
About Soil in Waukesha County, Wisconsin
Waukesha's Fertile Fine Sandy Loam
With a high soil score of 80.1, Waukesha County is dominated by Mollisols with a fine sandy loam texture. The pH averages 6.24, which is significantly more neutral than the state average of 5.63. These soils represent some of the most productive land in Southeast Wisconsin.
A Silty, Sandy Foundation
The soil mix is fairly balanced with 43.6% silt, 34.0% sand, and 15.7% clay. This fine sandy loam is prized for its excellent texture and ease of cultivation. It provides enough surface area for nutrient exchange while allowing for good aeration.
Steady Moisture and Healthy Matter
Waukesha features an organic matter content of 5.85%, nearly triple the national average of 2.0%. The available water capacity is 0.203 in/in, which is right in line with the Wisconsin state average. This combination supports consistent plant growth throughout the spring and summer.
Navigating Very Poorly Drained Areas
The dominant soil is classified as very poorly drained and belongs to hydrologic group A/D. This indicates a very high water table, which can lead to standing water in low-lying spots. It is vital to assess your specific site's drainage before starting a construction or garden project.
Abundant Harvests in Zone 5b
The 5b hardiness zone and Mollisol foundation are perfect for growing pumpkins, squash, and leafy greens. Because of the drainage challenges, many local gardeners find success with raised beds. Start your seeds early to take full advantage of this rich, high-scoring soil.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group A — Low Runoff
Sandy, well-drained soils with high infiltration rates. Water moves quickly through the soil profile. Lowest runoff potential when thoroughly wetted.
Drainage Class
Very poorly drained
Water is removed so slowly that free water remains at or on the surface most of the year. Typically wetland soils.
Soil Profile
Dominant texture: Fine sandy loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Waukesha County have?
Waukesha County's soil is classified as Fine sandy loam. This indicates the relative proportions of sand, silt, and clay — 34% sand, 44% silt, and 16% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Waukesha County's soil acidic or alkaline?
Waukesha 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 Waukesha County?
Waukesha County has a dominant drainage class of "Very poorly drained." Poorly drained soils retain water for extended periods, which can limit crop choices and may require tile drainage or raised beds.
What crops or plants grow well in Waukesha County's soil?
Based on Waukesha County's Fine sandy loam texture, pH of 6.2, and Very poorly drained, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens, rice, cranberries, and other water-tolerant species.
What USDA soil order is found in Waukesha County?
Waukesha County's dominant soil order is Mollisols. Mollisols are fertile, dark-colored soils that formed under grassland vegetation. They are among the most productive agricultural soils in the world.
Planning your lawn? View lawn care data for Waukesha County on LawnByCounty.com →
Other Counties in Wisconsin
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.