Mitchell County Soil Data
Mitchell County, Iowa
Avg pH
6.3
Texture
Loam
Drainage
Moderately well drained
Organic Matter
3.9%
Hydrologic Group
B
Data Story
About Soil in Mitchell County, Iowa
Acidic Loam Soils of Mitchell County
Mitchell County is characterized by a loamy texture within the Mollisol order. The average pH of 6.28 is more acidic than the national median of 6.5 and falls below the Iowa average of 6.43. This slightly acidic environment is ideal for many row crops and garden favorites.
A Balanced Mix for Versatile Farming
The soil composition is a balanced mix of 47.9% silt, 30.2% sand, and 21.1% clay. This high sand percentage compared to neighbors improves drainage and makes the soil easier to work in the spring. It offers a great middle-ground between nutrient holding capacity and aeration.
Rich Organic Matter Powers Plant Growth
With 3.91% organic matter, Mitchell County exceeds the state average of 3.81% and nearly doubles the national average. However, the available water capacity of 0.184 in/in is lower than the state average of 0.195 in/in. Plants here benefit from the rich nutrients but may require more frequent watering during droughts.
Productive Soils with Moderate Drainage
The land is classified as moderately well drained and belongs to hydrologic group B. This combination allows for decent water infiltration and a lower risk of runoff compared to heavier clay soils. These traits make it a reliable choice for both commercial agriculture and home landscaping.
Success in Zone 5a Gardens
In Hardiness Zone 5a, Mitchell County is perfect for cool-weather crops like kale, peas, and root vegetables. The loamy soil structure allows for easy root penetration, making it an excellent spot for a home vegetable patch. Grab your gloves and start planting in this nutrient-rich northern Iowa soil.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group B — Moderate Runoff
Moderately deep, moderately well-drained soils with moderate infiltration rates. Good balance of drainage and water retention.
Drainage Class
Moderately well drained
Water is removed somewhat slowly. May have a slowly permeable layer or seasonal water table.
Soil Profile
Dominant texture: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Mitchell County have?
Mitchell County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 30% sand, 48% silt, and 21% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Mitchell County's soil acidic or alkaline?
Mitchell County's soil has a pH of 6.3, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Mitchell County?
Mitchell County has a dominant drainage class of "Moderately well drained." Well-drained soils allow excess water to move through quickly, reducing waterlogging risk and supporting most field and garden crops.
What crops or plants grow well in Mitchell County's soil?
Based on Mitchell County's Loam texture, pH of 6.3, and Moderately well drained, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens, most annual and perennial crops.
What USDA soil order is found in Mitchell County?
Mitchell 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 Mitchell 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.