Monroe County Soil Data
Monroe County, Indiana
Avg pH
5.9
Texture
Silt loam
Drainage
Well drained
Organic Matter
2.4%
Hydrologic Group
B
Data Story
About Soil in Monroe County, Indiana
Classic silt loam Alfisols
Monroe County's landscape is dominated by Alfisols with an average pH of 5.89, which is more acidic than the national median of 6.5. This soil is typical for the forested hills of southern Indiana and provides a solid foundation for native timber and local crops. The 65.1 soil score reflects the challenges and opportunities of this specific terrain.
Silty texture with low sand
With a composition of 69.4% silt and only 13.3% sand, this soil is a true silt loam. The 17.3% clay content adds enough body to retain nutrients, but the high silt levels mean the soil can be prone to erosion if left uncovered. It feels silky to the touch and is highly workable when moisture levels are just right.
Superior water capacity for thirsty plants
Monroe County outperforms the state with an available water capacity of 0.208 in/in, compared to the average of 0.202. Organic matter stands at 2.40%, which is above the national 2.0% average but lower than the state's 4.90%. This means while you might need to add fertilizer, your soil is excellent at keeping your plants hydrated.
Reliable drainage in Group B
The soil is categorized as well-drained and falls into hydrologic group B, meaning it has moderate infiltration rates. This is ideal for preventing standing water in residential yards and supporting healthy root systems in local orchards. It manages the rolling topography of the county well by allowing water to move through the profile.
Lush growth in Zone 6b
The 6b hardiness zone and high water capacity make Monroe County a great place for deep-rooted perennials and native hardwoods. While you may need to add lime to raise the 5.89 pH for some vegetables, the soil structure is naturally supportive. Start a garden today and enjoy the benefits of this moisture-retentive silt loam.
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
Well drained
Water is removed from the soil readily but not rapidly. Optimal for most plants and construction.
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 — 13% sand, 69% silt, and 17% 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 5.9, 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?
Monroe County has a dominant drainage class of "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 Monroe County's soil?
Based on Monroe County's Silt loam texture, pH of 5.9, and 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 Monroe County?
Monroe County's dominant soil order is Alfisols. Alfisols are moderate to high base-status soils with a clay-enriched subsoil. They support productive forests and cropland across temperate regions.
Planning your lawn? View lawn care data for Monroe County on LawnByCounty.com →
Other Counties in Indiana
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.