Soil labs by state
Texas
Texas homeowners are directed to the Texas A&M AgriLife Extension Service Soil, Water and Forage Testing Laboratory in College Station for official soil analysis. Current official lab pages show mail or courier submission, downloadable urban/homeowner forms, online prepayment options, and a statewide Texas A&M AgriLife county office directory residents can use for local Extension help.
Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.
- State soil lab
- Texas A&M AgriLife Extension Service Soil, Water and Forage Testing Laboratory
- Lab website
- Official page →
- Basic test price
- $12 per sample
- Find your county Extension office
- Official page →
Official resources in Texas
Main official lab site with test options, addresses, sampling instructions, FAQs, and homeowner forms.
Official page for downloading soil forms and using the lab’s online payment workflow before shipping samples.
Official homeowner form listing the routine test, current prices on the form, and mailing instructions.
Official page with the USPS and courier addresses for sending soil samples to the lab.
Official county office finder residents can use to locate their local Extension office.
Key facts for Texas
- Texas’s official homeowner soil lab is the Texas A&M AgriLife Extension Service Soil, Water and Forage Testing Laboratory in College Station (soiltesting.tamu.edu).
- The official sampling page lists USPS mailing to 2478 TAMU, College Station, TX 77843-2478, and courier delivery to 2610 F&B Road, College Station, TX 77845 (sampling-and-shipping-instructions).
- The current Urban and Homeowner Soil Sample Information Form lists Routine Analysis (R) at $12 per sample (urbansoil.pdf).
- The forms page says homeowners can print the appropriate PDF submittal form and use Aggie Marketplace for online credit-card prepayment before shipping samples (submittal-forms).
- The soil FAQ says many Texas A&M AgriLife Extension county offices order and stock soil sample bags, but quart-size freezer zip bags are acceptable (faq-soil).
- I did not find an official statewide Texas page confirming county offices accept homeowner soil sample drop-off for forwarding; the lab’s official pages clearly confirm direct shipment and lab lobby drop-off in College Station.
What to do next
- Use the county office directory at counties.agrilife.org to find your local Texas A&M AgriLife Extension office and ask whether that specific office has soil sample bags or local handling instructions.
- For a lawn or garden sample, download the official urban/homeowner form, choose the Routine Analysis if you want the basic test, and include payment or online prepayment details.
- If you are ready to submit immediately, package the soil with the completed form and send it directly to the official College Station lab using the USPS or courier address on the lab’s shipping page.
Helpful guides
- How to take a soil sample for a lab test
- University soil labs vs. private labs vs. home kits
- How to read a soil test report
- Soil pH and lime: what your test is telling you