IDAHO· UNIVERSITY & EXTENSION LABS
Where to get a soil test in Idaho
A soil test is how you stop guessing at fertilizer and fix the one thing your lawn actually needs. In Idaho, the public program below tests homeowner samples and interprets the results for local soils.
IDAHO STATE LAB
University of Idaho Analytical Sciences Laboratory
University of Idaho analytical lab services.
Visit the lab & sampling instructions →County drop-off & extension offices
County extension offices across Idaho hand out sample forms and can walk you through submitting to the lab. 12 of the most populous counties are listed below.
University of Idaho Extension, Ada County office
Garden City, ID
University of Idaho Extension, Bannock County office
Pocatello, ID
University of Idaho Extension, Bingham County office
Blackfoot, ID
University of Idaho Extension, Bonner County office
Sandpoint, ID
University of Idaho Extension, Bonneville County office
Idaho Falls, ID
University of Idaho Extension, Canyon County office
Caldwell, ID
University of Idaho Extension, Cassia County office
Burley, ID
University of Idaho Extension, Kootenai County office
Coeur d'Alene, ID
University of Idaho Extension, Latah County office
Moscow, ID
University of Idaho Extension, Madison County office
Rexburg, ID
University of Idaho Extension, Nez Perce County office
Lewiston, ID
University of Idaho Extension, Twin Falls County office
Twin Falls, ID
Not your county? Find your local office in the full Idaho directory.
How it works
- 01
Get a form and sample the way your lab says to
Pick up a form at a county office or download it from University of Idaho Analytical Sciences Laboratory. Where you pull cores and how you mix them decides whether the report means anything, so follow the lab's instructions exactly.
- 02
Send it in
Mail your sample to the lab with its completed form. County offices can help if you get stuck.
- 03
Turn the report into a plan
When results come back, the numbers only matter if they change what you put down. Enter them in the app and it builds the plan.
THE APP · SOIL REPORT ANALYZER
Got your Idaho report back? Analyze it.
Enter your report values in the Lawn Dominator app and pick your lab, and it handles the messy part: units and extraction methods differ by lab, so your numbers get compared against turf targets that match how your lab measured them. Then it helps build the fertilizer plan for your grass type and checks timing against your live soil temperature.
Free to download on iPhone and Android.
Common questions
- Where can I get a soil test in Idaho?
- Idaho's public soil testing is run through University of Idaho Analytical Sciences Laboratory. Many county extension offices (listed on this page) stock the sample forms and can help you submit. National mail-in labs like Logan Labs, Ward Laboratories, and Waypoint Analytical are established alternatives.
- How much does a soil test cost in Idaho?
- Fees vary by lab and by which package you choose (basic pH plus phosphorus and potassium, versus expanded panels with organic matter and micronutrients). Check University of Idaho Analytical Sciences Laboratory for current pricing before you send a sample; the page linked here is the authority for its own fees.
- How do I turn my Idaho soil test into a fertilizer plan?
- Enter your report values in the Lawn Dominator app and pick your lab so units and extraction method are handled correctly, and it compares your numbers against turf sufficiency targets and helps build the fertilizer plan for your grass type.
Looking for another state? See the national map of soil test labs. University of Idaho Analytical Sciences Laboratory is the authority for its own test menu, sampling instructions, fees, and result interpretation.