Garvin County Soil Data
Garvin County, Oklahoma
Avg pH
6.0
Texture
Water
Drainage
N/A
Organic Matter
1.5%
Hydrologic Group
D
Data Story
About Soil in Garvin County, Oklahoma
Acidic Foundations in Garvin County
Garvin County soils maintain an average pH of 5.95, which is more acidic than the national median of 6.5. This pH level sits slightly below the Oklahoma state average of 6.06. While specific taxonomic data is limited, the landscape's profile suggests a distinct chemical character that shapes local land use.
A Balanced Mix of Sand and Silt
The soil contains 39.6% sand, 31.6% silt, and 18.9% clay, creating a medium-textured profile. This composition generally allows for decent workability while the clay content helps retain essential nutrients. The sand-heavy mix ensures the ground doesn't become overly compacted during heavy rains.
Solid Water Capacity with Lean Organic Matter
Organic matter sits at 1.52%, trailing the national average of 2.0% and the state average of 1.72%. However, the available water capacity matches the state average exactly at 0.144 in/in. This suggests that while the soil needs some amendment for nutrients, it holds moisture reliably for crops.
Slow Infiltration in Hydrologic Group D
The county's soil falls into Hydrologic Group D, which indicates very slow infiltration rates and high runoff potential. While specific drainage class data is unavailable, this group often requires careful management to prevent ponding. Builders and farmers should account for this slow drainage when planning infrastructure or irrigation.
Gardening in Hardiness Zone 7b
Garvin County's climate and soil support a variety of crops, with Zone 7b offering a long growing season. Native pecans and various forage grasses thrive in this environment. With its 36.6 soil score, this land provides a productive baseline for home gardeners who add a little organic compost.
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: Water
Typical soil profile. Actual depths vary by location.
USDA Soil Orders
Frequently Asked Questions
What type of soil does Garvin County have?
Garvin County's soil is classified as Water. This indicates the relative proportions of sand, silt, and clay — 40% sand, 32% silt, and 19% clay. Sandy soils drain quickly but may need more frequent irrigation and fertilization.
Is Garvin County's soil acidic or alkaline?
Garvin County's soil has a pH of 6.0, which is moderately acidic. This range suits many crops and is common across much of the eastern US.
What is the drainage class for Garvin County?
Drainage class data is not currently available for Garvin County.
What crops or plants grow well in Garvin County's soil?
Based on Garvin County's Water texture, pH of 6.0, and drainage class, the soil is well suited for vegetables, grains, and most field crops.
What USDA soil order is found in Garvin County?
The dominant USDA soil order for Garvin County is not currently available in our dataset.
Planning your lawn? View lawn care data for Garvin County on LawnByCounty.com →
Other Counties in Oklahoma
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.