Texas Extension & Soil Testing Directory
Find your local Texas County Cooperative Extension office, official state university soil analysis lab, and Master Gardener volunteer plant clinics.
🔬 State Soil Testing Laboratory
Official Lab: Texas A&M Soil, Water and Forage Testing Laboratory
Standard Fee: $12 routine soil fertility analysis
Turnaround Time: 5 to 7 business days
State residents can obtain soil sample bags and submittal forms at any local county extension branch.
🌱 State Growing Conditions
Soil Types: Blackland Prairie Heavy Alkaline Clay (Houston Black, pH 7.5 - 8.2)
Hardiness Zones: Zone 8b
Popular Crops: Okra, peppers, black-eyed peas, peaches, bermudagrass
Dallas black clay expands when wet and cracks when dry; incorporate expanded shale and compost.
Featured County Directories in Texas (3 Listings)
Dallas County
Extension Office: Texas A&M AgriLife Extension - Dallas County
Soil Lab Fee: $12 routine soil fertility analysis
Phone: (214) 904-3050
Tarrant County
Extension Office: Texas A&M AgriLife Extension - Tarrant County
Soil Lab Fee: $12 per routine sample
Phone: (817) 884-1945
Travis County
Extension Office: Texas A&M AgriLife Extension - Travis County
Soil Lab Fee: $12 routine soil analysis
Phone: (512) 854-9600
Looking for Another County in Texas?
Every county in Texas is supported by the state Land-Grant University Extension system. If your specific county directory is currently being indexed, you can submit your soil samples directly to Texas A&M Soil, Water and Forage Testing Laboratory or contact our editorial desk for direct local office hours.
Request Local Extension Info for Your CountyFrequently Asked Questions: Texas Soil & Extension
How do I get my soil tested in Texas?
To test your soil in Texas, collect 10 to 12 soil cores from a depth of 4 to 6 inches across your garden or field, air-dry the sample indoors, fill out your county extension submission form, and submit it to Texas A&M Soil, Water and Forage Testing Laboratory or your local county extension office.
How much does soil testing cost in Texas?
Routine soil fertility analysis in Texas typically costs $12 routine soil fertility analysis. Turnaround time for results is usually 5 to 7 business days.
Does every county in Texas have a Cooperative Extension Office?
Yes. Every county in Texas is served by the state's Land-Grant University Extension system. While our directory highlights primary regional office hubs and university labs, local extension agents serve horticulturists, farmers, and home gardeners across all counties in Texas.
Written & Verified by Sahajul
Verified Author & Founder
Sahajul is an independent agricultural data researcher based in India and founder of LocalSoilLab.com. He specializes in compiling, structuring, and verifying US land-grant university extension services, soil lab testing fee schedules, and county Master Gardener contact directories directly from official .edu and USDA NIFA portals.