Monroe County Soil Data
Monroe County, Iowa
Avg pH
6.2
Texture
Silt Loam
Drainage
N/A
Organic Matter
2.9%
Hydrologic Group
N/A
Data Story
About Soil in Monroe County, Iowa
Acidic Profiles in Monroe County
Monroe County features an average soil pH of 6.20, which is significantly more acidic than the national median of 6.5. While dominant texture and taxonomic data are limited for this region, the pH suggests a need for lime applications in sensitive crops. This acidity is typical for many older soil profiles in southern Iowa.
A Silt-Dominant Mineral Mix
The mineral composition includes 57.0% silt, 26.1% clay, and 16.6% sand. This mixture provides a solid balance for nutrient holding and enough sand to prevent the extreme heaviness found in pure clay soils. The high silt percentage makes these soils susceptible to wind and water erosion if left uncovered.
Standard Water Capacity with Moderate Matter
The available water capacity is 0.195 in/in, exactly hitting the Iowa state average. Organic matter levels sit at 2.87%, which is higher than the national average of 2.0% but lower than the Iowa average of 3.81%. These soils provide a reliable foundation but benefit from organic amendments.
Managing Variability without Formal Classes
Formal drainage and hydrologic classifications are currently unavailable for this specific data set. However, the 26.1% clay content suggests moderate drainage speeds that likely require careful observation during wet springs. Local land managers typically look for signs of saturation before operating heavy equipment.
Planting Success in Zone 5b
Located in Hardiness Zone 5b, Monroe County is ideal for a wide range of vegetables and berries. Blueberries may particularly enjoy the slightly more acidic pH of 6.20 if specific local spots lean even lower. Start a garden this season to capitalize on the county's reliable water-holding capacity.
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
Frequently Asked Questions
What type of soil does Monroe County have?
Monroe County's soil is classified as Silt Loam. This indicates the relative proportions of sand, silt, and clay — 17% sand, 57% silt, and 26% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Monroe County's soil acidic or alkaline?
Monroe 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 Monroe County?
Drainage class data is not currently available for Monroe County.
What crops or plants grow well in Monroe County's soil?
Based on Monroe County's Silt 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 Monroe County?
The dominant USDA soil order for Monroe County is not currently available in our dataset.
Planning your lawn? View lawn care data for Monroe 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.