Soil labs by state
Idaho
Idaho homeowners are served through the University of Idaho system: soil testing is handled by the University of Idaho Analytical Sciences Laboratory in Moscow, while local University of Idaho Extension county offices help residents with sampling guidance and result interpretation. Current official Idaho pages show both direct-to-lab mailing and, in some counties, Extension office kit pickup or sample drop-off assistance.
Checked against official sources on October 4, 2026. Rules and links change; confirm with the office listed before you act.
- State soil lab
- University of Idaho Analytical Sciences Laboratory
- Lab website
- Official page →
- Basic test price
- $35.00
- Find your county Extension office
- Official page →
Official resources in Idaho
Official laboratory page for Idaho soil analysis, sample submission, contacts, and links to forms and price lists.
Official current soil fertility test menu showing package names, included analytes, sample sizes, and prices.
Official county office finder for University of Idaho Extension offices across Idaho.
Official county example showing residents can pick up a soil test kit locally and then mail the sample with payment to the lab.
Official county example with homeowner soil sampling steps, the standard test description, and direct delivery instructions to the Moscow lab.
Key facts for Idaho
- Idaho’s land-grant soil testing lab is the University of Idaho Analytical Sciences Laboratory in Moscow. Source: https://www.uidaho.edu/idaho-ag-experiment-station/services/analytical-sciences
- The lab says soil sampling technique questions should go to the local Extension educator, and ASL does not provide soil interpretations or recommendations. Source: https://www.uidaho.edu/idaho-ag-experiment-station/services/analytical-sciences
- The official ASL soil fertility price list shows Soil Fertility - T1 at $35.00, including pH, P, K, NO3, NH4, organic matter, drying and milling. Source: https://content-hub.uidaho.edu/api/public/content/231eafc7dc354c64956f7037db7818ff?v=b941e3af
- Ada County Extension says homeowners can pick up a soil test kit there, prepare the sample, and mail the submission with payment to ASL. Source: https://www.uidaho.edu/extension/county/ada/horticulture
- Latah County Extension says the standard soil fertility test costs $35 and directs residents to take the sample, submission form, and check to the Analytical Sciences Laboratory. Source: https://www.uidaho.edu/extension/county/latah/horticulture
- University of Idaho’s county locations page lets residents click the map or use the A-Z list to find their county Extension office. Source: https://www.uidaho.edu/extension/county
What to do next
- Start with the University of Idaho county locations page, open your county office, and check whether that office offers soil test kits, drop-off help, or interpretation support.
- If you already know the test you want, use the ASL submission form and soil fertility price list, then mail or deliver the sample exactly as the lab instructions require.
- After results arrive, contact your county Extension office for help interpreting the numbers for a lawn, garden, or landscape planting.
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