Jefferson County Soil Data
Jefferson County, Pennsylvania
USDA SSURGO / PHZMAvg pH
5.0
Texture
Loam
Drainage
N/A
Organic Matter
30.8%
Hydrologic Group
N/A
Data Story
About Soil in Jefferson County, Pennsylvania
Highly acidic woodland soil foundations
Jefferson County features an average pH of 5.03, significantly more acidic than the national median of 6.5. This measurement falls just below the Pennsylvania state average of 5.22, requiring lime for most traditional crops. Taxonomic data is currently limited for this region's soil profile.
A silty mix with low clay
The soil contains 37.6% silt and 20.6% sand, balanced by a relatively low 11.5% clay content. This composition typically offers moderate workability but may lack the structural stability found in heavier clay soils. These ratios suggest the land is prone to erosion if left uncovered.
Massive organic reserves but low water storage
Organic matter is exceptionally high at 30.85%, dwarfing the state average of 12.14%. However, the available water capacity sits at 0.105 in/in, which is lower than the state average of 0.151 in/in. This means while the soil is nutrient-rich, it struggles to hold onto moisture during dry spells.
Navigating uncertain drainage patterns
Specific drainage class and hydrologic group data are currently unavailable for Jefferson County. Local growers should perform site-specific percolation tests before starting major building or irrigation projects. Understanding your specific lot's runoff potential is crucial given the high silt content.
Resilient gardening in Zone 6a
With a USDA hardiness zone of 6a, this county is perfect for cool-weather crops like kale, garlic, and blueberries which thrive in acidic conditions. Use the high organic matter to your advantage by planting heavy feeders. Start your mountain garden today to make the most of this unique 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
Acidic Soil Detected
Your county's average pH is 5.0. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Jefferson County have?
Jefferson County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 21% sand, 38% silt, and 12% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Jefferson County's soil acidic or alkaline?
Jefferson 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 Jefferson County?
Drainage class data is not currently available for Jefferson County.
What crops or plants grow well in Jefferson County's soil?
Based on Jefferson County's Loam 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 Jefferson County?
The dominant USDA soil order for Jefferson County is not currently available in our dataset.
Soil & Planting Advisory: Jefferson County
Soil Verdict
Jefferson County is in USDA hardiness zone 6a, a moderate climate zone. where winter lows can reach -10°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
Jefferson County closely matches the Pennsylvania average hardiness conditions.
Planning your lawn? View lawn care data for Jefferson County on LawnByCounty.com →
Other Counties in Pennsylvania
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.