Williamsburg County Soil Data
Williamsburg County, South Carolina
Avg pH
5.0
Texture
Loamy Sand
Drainage
N/A
Organic Matter
2.5%
Hydrologic Group
N/A
Data Story
About Soil in Williamsburg County, South Carolina
High acidity in the Lowcountry
Williamsburg County features very acidic soil with a pH of 5.04. This is significantly lower than both the state average of 5.27 and the national median of 6.5, indicating a highly specialized growing environment.
A very sandy soil profile
The soil composition is dominated by 74.4% sand, with 15.6% silt and only 10.0% clay. This creates a loose, gritty texture that allows for excellent aeration but offers very little natural resistance to water movement.
Strong organic matter despite low capacity
With 2.46% organic matter, the soil exceeds the state average of 2.05%. However, the sandy nature results in a low available water capacity of 0.101 in/in, meaning plants will likely need supplemental irrigation during dry periods.
Limited classification data for local soils
Specific drainage classes and hydrologic groups are not documented in the current primary dataset for this county. Given the 74.4% sand content, growers should expect rapid water infiltration and plan their nutrient applications to avoid leaching.
The perfect home for acid-loving crops
Williamsburg's zone 8b climate and acidic, sandy soil are ideal for blueberries and sweet potatoes. If you are starting a garden, focus on crops that naturally thrive in low-pH environments to take advantage of these local conditions.
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: Loamy Sand
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Williamsburg County have?
Williamsburg County's soil is classified as Loamy Sand. This indicates the relative proportions of sand, silt, and clay — 74% sand, 16% silt, and 10% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Williamsburg County's soil acidic or alkaline?
Williamsburg County's soil has a low pH of 5.0, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Williamsburg County?
Drainage class data is not currently available for Williamsburg County.
What crops or plants grow well in Williamsburg County's soil?
Based on Williamsburg County's Loamy Sand texture, pH of 5.0, and drainage class, the soil is well suited for acid-loving plants like blueberries and azaleas, row crops and vegetable gardens.
What USDA soil order is found in Williamsburg County?
The dominant USDA soil order for Williamsburg County is not currently available in our dataset.
Planning your lawn? View lawn care data for Williamsburg County on LawnByCounty.com →
Other Counties in South Carolina
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.