Noble County Soil Data
Noble County, Ohio
USDA SSURGO / PHZMAvg pH
5.8
Texture
Silt loam
Drainage
Well drained
Organic Matter
4.2%
Hydrologic Group
B
Data Story
About Soil in Noble County, Ohio
Old and weathered Ultisols
Noble County is home to Ultisols, which are highly weathered soils typically found in older landforms. These soils have an average pH of 5.77, placing them below the national median of 6.5 and closer to the state average. This indicates that the soil is naturally acidic and may require lime to optimize nutrient availability for most garden plants.
Silt loam with high clay potential
The dominant texture is silt loam, featuring a high silt content of 55.3% and a notable 23.0% clay. This composition provides a smooth feel and excellent nutrient-holding capacity, though it can become slippery and hard to work when wet. The low sand content of 18.4% means that the soil relies heavily on its silt and clay for structure.
Stable water capacity and solid organic levels
The soil contains 4.17% organic matter, which is higher than the national average but slightly below the state benchmark of 4.85%. Its available water capacity of 0.180 in/in is nearly on par with the state average of 0.186 in/in. These balanced numbers help the county achieve a soil score of 59.4, providing a decent foundation for agriculture.
Well-drained with moderate infiltration
Noble County soils are predominantly well-drained and fall into hydrologic group B. This means the soil has a moderate infiltration rate and allows water to move through the profile relatively easily. This drainage class is excellent for many types of construction and prevents most crops from suffering 'wet feet'.
Successful growing in zone 6b
Noble County gardeners work within hardiness zone 6b, where the climate supports a diverse array of fruits and vegetables. Silt loam is particularly well-suited for growing berries, orchards, and hardy shrubs. Embrace the natural fertility of these ancient soils and start your garden this season.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group B — Moderate Runoff
Moderately deep, moderately well-drained soils with moderate infiltration rates. Good balance of drainage and water retention.
Drainage Class
Well drained
Water is removed from the soil readily but not rapidly. Optimal for most plants and construction.
Soil Profile
Dominant texture: Silt loam
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Acidic Soil Detected
Your county's average pH is 5.8. These products help balance soil pH for healthier grass.
Browse Soil AmendmentsFrequently Asked Questions
What type of soil does Noble County have?
Noble County's soil is classified as Silt loam. This indicates the relative proportions of sand, silt, and clay — 18% sand, 55% silt, and 23% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Noble County's soil acidic or alkaline?
Noble County's soil has a pH of 5.8, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Noble County?
Noble 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 Noble County's soil?
Based on Noble County's Silt loam texture, pH of 5.8, and Well drained, the soil is well suited for vegetables, grains, and most field crops, row crops and vegetable gardens, most annual and perennial crops.
What USDA soil order is found in Noble County?
Noble County's dominant soil order is Ultisols. Ultisols are highly weathered, clay-rich soils common in humid regions. They are low in natural fertility and often require lime and fertilizer for agriculture.
Soil & Planting Advisory: Noble County
Soil Verdict
Noble 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
Noble County closely matches the Ohio average hardiness conditions.
Planning your lawn? View lawn care data for Noble County on LawnByCounty.com →
Other Counties in Ohio
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.