Warren County Soil Data
Warren County, New Jersey
USDA SSURGO / PHZMAvg pH
2.1
Texture
Loam
Drainage
Well drained
Organic Matter
45.0%
Hydrologic Group
N/A
Data Story
About Soil in Warren County, New Jersey
High performing agricultural base
Warren County earns a high soil score of 65.9, reflecting its strong agricultural foundation. Its pH of 2.13 is very acidic, measuring well below the state average of 4.24 and the national median of 6.5.
Medium texture for optimal growth
The soil contains 31.9% sand and 34.4% silt, creating a medium-textured earth that is highly productive. With only 11.1% clay, the soil provides a perfect balance for air and water movement through the root zone.
Powerhouse levels of organic matter
Boasting 44.99% organic matter, Warren’s soil is nearly triple the state average of 15.72%. Its water capacity of 0.246 in/in ensures that crops remain hydrated even during dry spells.
Reliably well-drained terrain
This land is classified as well-drained, making it ideal for a variety of agricultural uses and residential building. This natural efficiency helps prevent waterlogging and promotes deep, healthy root systems.
Resilient crops for a cool climate
The Zone 6b climate supports a diverse range of hardy vegetables and perennials. Grab your shovel and take advantage of this top-tier soil to grow your own food this year.
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
Well drained
Water is removed from the soil readily but not rapidly. Optimal for most plants and construction.
Soil Profile
Dominant texture: Loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Acidic Soil Detected
Your county's average pH is 2.1. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Warren County have?
Warren County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 32% sand, 34% silt, and 11% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Warren County's soil acidic or alkaline?
Warren County's soil has a low pH of 2.1, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Warren County?
Warren 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 Warren County's soil?
Based on Warren County's Loam texture, pH of 2.1, and Well drained, the soil is well suited for acid-loving plants like blueberries and azaleas, row crops and vegetable gardens, most annual and perennial crops.
What USDA soil order is found in Warren County?
The dominant USDA soil order for Warren County is not currently available in our dataset.
Soil & Planting Advisory: Warren County
Soil Verdict
Warren County is in USDA hardiness zone 6b, a moderate climate zone. where winter lows can reach -5°F. Freeze-thaw cycles are moderate; soil biology slows in winter but recovers reliably in spring, supporting a broad range of plants.
Planting Guidance
A wide plant palette is possible: deciduous trees, most shrubs, cool-season vegetables, and many perennials thrive here. Winter protection (mulch, burlap wraps) helps push the zone boundary for desired species. Always match plant selections to the specific microclimate of your property — low spots, slopes, and wind exposure can shift effective hardiness by half a zone.
Soil Implications
Moderate freeze-thaw cycles naturally aerate the soil but can also cause compaction in clay-heavy areas; annual core aeration is beneficial. Organic matter amendments decompose at a moderate pace — aim for 3-5% organic content for optimal fertility. When soil temperatures drop below freezing, microbial nitrogen cycling stops; spring fertilization is more effective than late-fall application.
Regional Context
Warren County is somewhat cooler than the New Jersey statewide average. The zone range of 6b-7a within the county means soil and planting decisions should account for local elevation and topography.
Planning your lawn? View lawn care data for Warren County on LawnByCounty.com →
Other Counties in New Jersey
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.