Winn Parish Soil Data
Winn Parish, Louisiana
Avg pH
5.7
Texture
Loam
Drainage
N/A
Organic Matter
2.0%
Hydrologic Group
D
Data Story
About Soil in Winn Parish, Louisiana
The Sandy Loams of Winn
Winn Parish has a soil score of 41.0 and an average pH of 5.71, which is very close to the Louisiana state average. While it is more acidic than the national 6.5 median, it is well-suited for the region's native timber and specialty crops. This soil represents a transition between the heavy clays and the lighter sands of the north.
Balanced Sand and Silt
The soil contains 42.0% sand and 39.5% silt, creating a medium texture that is easy to manage. Clay makes up 18.5% of the profile, providing just enough structure to hold some nutrients without becoming impossibly sticky. This balance makes the land versatile for both forestry and small-scale farming.
Healthy Organic Foundations
Organic matter is recorded at 2.01%, hitting the national average exactly, though it is below the state average of 6.38%. The available water capacity is 0.155 in/in, which is lower than the state average and suggests a need for irrigation during dry weeks. Regular addition of organic mulch can help improve these numbers over time.
High Runoff Risk
Winn Parish is largely classified as Hydrologic Group D, indicating a high potential for water runoff when the ground is wet. This suggests that despite the sandy-silt texture, the soil does not absorb water quickly enough to prevent surface flow during storms. Proper erosion control is vital for maintaining topsoil on sloped land.
Hardy Growing in Zone 8b
Zone 8b provides a slightly shorter growing season than the coast, but it is perfect for peppers, tomatoes, and stone fruits. The sandy-silt soil is a favorite for southern peas and watermelons that enjoy good drainage. Start your garden this spring to take advantage of Winn's workable and responsive soil.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group D — High Runoff
Clay soils with very slow infiltration rates. Highest runoff potential. These soils have a permanent high water table or are shallow over impervious material.
Drainage Class
Drainage class data not available.
Soil Profile
Dominant texture: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Winn Parish have?
Winn Parish's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 42% sand, 39% silt, and 18% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Winn Parish's soil acidic or alkaline?
Winn Parish's soil has a pH of 5.7, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Winn Parish?
Drainage class data is not currently available for Winn Parish.
What crops or plants grow well in Winn Parish's soil?
Based on Winn Parish's Loam texture, pH of 5.7, 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 Winn Parish?
The dominant USDA soil order for Winn Parish is not currently available in our dataset.
Planning your lawn? View lawn care data for Winn Parish on LawnByCounty.com →
Other Counties in Louisiana
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.