Josephine County Soil Data
Josephine County, Oregon
Avg pH
5.2
Texture
Loam
Drainage
N/A
Organic Matter
39.7%
Hydrologic Group
D
Data Story
About Soil in Josephine County, Oregon
Acidic soils define Josephine County
The soil here is notably acidic with an average pH of 5.22, which is lower than the national median of 6.5. This measurement sits slightly below the Oregon state average of 5.26. While specific taxonomic data is limited, these acidic conditions strongly influence local plant selection and soil management.
A balanced mix of earth
The soil composition features 37.4% sand, 41.1% silt, and 17.7% clay. This balanced distribution provides a versatile texture that supports reasonable workability for farmers and gardeners. The silt and clay components help the soil maintain its structure while the sand prevents excessive compaction.
Exceptional organic matter levels
Josephine County boasts a massive 39.68% organic matter content, dwarfing the state average of 29.41% and the national average of 2.0%. The available water capacity of 0.285 in/in also exceeds the state benchmark of 0.275 in/in. These high levels indicate an extremely nutrient-dense environment for growing.
Understanding high runoff potential
The soil falls into Hydrologic Group D, which is characterized by high runoff potential and low infiltration rates when wet. While specific drainage classes are not recorded, this group suggests that water moves slowly through the profile. Proper site grading is essential for any building or large-scale agricultural projects.
Thriving in Zone 8b
In USDA Hardiness Zone 8b, the acidic, organic-rich soil is perfect for blueberries, rhododendrons, and azaleas. The mild climate and fertile earth provide a long growing season for a wide variety of crops. Now is the perfect time to start your garden and take advantage of these superior soil scores.
Soil Composition
Soil pH
Soil Series
Detailed soil series data not yet available for this county.
Hydrologic Group
Group D — High Runoff
Clay soils with very slow infiltration rates. Highest runoff potential. These soils have a permanent high water table or are shallow over impervious material.
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 Josephine County have?
Josephine County's soil is classified as Loam. This indicates the relative proportions of sand, silt, and clay — 37% sand, 41% silt, and 18% clay. Loamy soils hold moisture well and support a wide range of plants.
Is Josephine County's soil acidic or alkaline?
Josephine County's soil has a low pH of 5.2, which is strongly acidic. Acidic soils benefit from lime applications to raise pH and improve nutrient availability.
What is the drainage class for Josephine County?
Drainage class data is not currently available for Josephine County.
What crops or plants grow well in Josephine County's soil?
Based on Josephine County's Loam texture, pH of 5.2, 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 Josephine County?
The dominant USDA soil order for Josephine County is not currently available in our dataset.
Planning your lawn? View lawn care data for Josephine County on LawnByCounty.com →
Other Counties in Oregon
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.