Caddo Parish Soil Data
Caddo Parish, Louisiana
Avg pH
5.9
Texture
Loam
Drainage
N/A
Organic Matter
1.7%
Hydrologic Group
D
Data Story
About Soil in Caddo Parish, Louisiana
Acidic soils define Caddo's northern landscape
Caddo Parish presents an average pH of 5.94, which is slightly less acidic than the Louisiana state average of 5.74. While it remains more acidic than the national median of 6.5, these levels generally support a wide range of regional vegetation. Local data for taxonomic order and texture remains limited, but the chemical profile suggests a need for occasional lime treatments for sensitive crops.
A sandy foundation with moderate clay
The soil composition here features 41.8% sand and 34.8% silt, balanced by 23.4% clay. This high sand content promotes faster drainage but can limit the ground's ability to hold onto vital nutrients. Farmers and gardeners should expect a workable soil that requires frequent monitoring of moisture levels during dry spells.
Fertility levels lag behind state averages
Organic matter in Caddo Parish sits at 1.69%, significantly lower than the Louisiana state average of 6.38%. The available water capacity of 0.157 in/in also trails the state benchmark of 0.182 in/in. These numbers indicate that soil amendments like compost are essential to improve both nutrient density and water retention.
High runoff risks in Group D soils
Caddo Parish is characterized by Hydrologic Group D soils, which typically exhibit very low infiltration rates when thoroughly wet. This group often leads to high runoff potential, making drainage management a priority for builders and farmers alike. Although specific drainage class data is unavailable, the Group D classification suggests naturally heavy or restricted drainage.
Nurturing a garden in Zone 8b
This parish sits in USDA Hardiness Zone 8b, providing a long growing season for heat-tolerant favorites like okra and peppers. The sandy-clay mix is particularly well-suited for southern pines and blueberries if pH levels are managed. Start your garden today by focusing on organic mulches to boost the local soil score of 42.3.
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 Caddo Parish have?
Caddo Parish's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 42% sand, 35% silt, and 23% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Caddo Parish's soil acidic or alkaline?
Caddo Parish'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 Caddo Parish?
Drainage class data is not currently available for Caddo Parish.
What crops or plants grow well in Caddo Parish's soil?
Based on Caddo Parish's Loam texture, pH of 5.9, 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 Caddo Parish?
The dominant USDA soil order for Caddo Parish is not currently available in our dataset.
Planning your lawn? View lawn care data for Caddo 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.