Sullivan County Soil Data
Sullivan County, New York
Avg pH
4.8
Texture
Loam
Drainage
N/A
Organic Matter
31.6%
Hydrologic Group
N/A
Data Story
About Soil in Sullivan County, New York
Strongly Acidic and Rich Forest Soils
Sullivan County features a pH of 4.77, which is more acidic than the state average of 5.11 and the national median of 6.5. Despite this acidity, the county achieves a soil score of 66.6. These conditions are common in the heavily forested Catskill region.
A Gritty and Versatile Mix
The composition is 43.5% sand, 35.5% silt, and 10.8% clay. This sand-heavy mix provides excellent structural stability and ease of tilling. The low clay content prevents the soil from becoming overly sticky or difficult to manage during wet seasons.
Leading the State in Organic Matter
At 31.57%, Sullivan’s organic matter is nearly double the state average of 17.01% and dominates the soil profile. This massive organic reserve drives an available water capacity of 0.217 in/in, well above the state benchmark. This soil is essentially a sponge for nutrients and moisture.
High Retention Meets Rapid Flow
While specific drainage data is unavailable, the 43.5% sand content suggests that water moves easily through the upper layers. The high organic matter helps retain that moisture for plant use without creating swampy conditions. This balance is perfect for sustaining the county's lush natural landscapes.
Lush Opportunities in Zone 6a
In USDA Zone 6a, you can grow a wide variety of vegetables and cold-hardy perennials. The incredibly high organic matter makes this an ideal spot for intensive gardening and high-yield vegetable beds. Start your garden today to tap into this remarkably rich mountain soil.
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: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Sullivan County have?
Sullivan County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 44% sand, 35% silt, and 11% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Sullivan County's soil acidic or alkaline?
Sullivan County's soil has a low pH of 4.8, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Sullivan County?
Drainage class data is not currently available for Sullivan County.
What crops or plants grow well in Sullivan County's soil?
Based on Sullivan County's Loam texture, pH of 4.8, 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 Sullivan County?
The dominant USDA soil order for Sullivan County is not currently available in our dataset.
Planning your lawn? View lawn care data for Sullivan County on LawnByCounty.com →
Other Counties in New York
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.