Oregon Extension & Soil Testing Directory
Find your local Oregon County Cooperative Extension office, official state university soil analysis lab, and Master Gardener volunteer plant clinics.
🔬 State Soil Testing Laboratory
Official Lab: OSU Extension Recommended Soil Laboratories
Standard Fee: $20 - $30 routine soil sample
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: Willamette Valley Silt Loam & Volcanic Clay
Hardiness Zones: Zone 5a / 9a
Popular Crops: Hazelnuts, berries, hops, wine grapes, turf seed
Pacific Northwest winter rain leaches calcium and magnesium; test soil every two years.
Featured County Directories in Oregon (8 Listings)
Multnomah County
Extension Office: Oregon State University Extension - Multnomah County
Soil Lab Fee: $20 - $30 routine soil sample
Phone: (410) 555-0199
Washington County
Extension Office: Oregon State University Extension - Washington County
Soil Lab Fee: $20 - $30 routine soil sample
Phone: (410) 555-0199
Clackamas County
Extension Office: Oregon State University Extension - Clackamas County
Soil Lab Fee: $20 - $30 routine soil sample
Phone: (410) 555-0199
Lane County
Extension Office: Oregon State University Extension - Lane County
Soil Lab Fee: $20 - $30 routine soil sample
Phone: (410) 555-0199
Marion County
Extension Office: Oregon State University Extension - Marion County
Soil Lab Fee: $20 - $30 routine soil sample
Phone: (410) 555-0199
Jackson County
Extension Office: Oregon State University Extension - Jackson County
Soil Lab Fee: $20 - $30 routine soil sample
Phone: (410) 555-0199
Deschutes County
Extension Office: Oregon State University Extension - Deschutes County
Soil Lab Fee: $20 - $30 routine soil sample
Phone: (410) 555-0199
Benton County
Extension Office: Oregon State University Extension - Benton County
Soil Lab Fee: $20 - $30 routine soil sample
Phone: (410) 555-0199
📦 Recommended Mail-In Soil Test Kits & Meters
FTC Affiliate Disclosure: We may earn a commissionIf you need immediate results without waiting for university mail-in lab turnaround times, these top-rated professional home soil test kits provide fast pH, N, P, and K diagnostic analysis:
MySoil Soil Test Kit
Professional mail-in kit analyzed by accredited labs. Returns 13 essential nutrient values (N, P, K, pH, Micronutrients) & customized fertilizer recommendations via app.
Luster Leaf Rapitest 1601
Popular color-comparator kit for 10 instant soil tests (pH, Nitrogen, Phosphorus, Potash). Includes tailored plant preference chart.
Sonkir 3-in-1 Soil Tester
Instant probe sensor for soil moisture, pH, and sunlight levels. Requires no batteries. Perfect for potted plants, lawns, and raised beds.
📋 Request Local Extension & Lawn Testing Assistance in Oregon Statewide
Need help interpreting your lab results or finding local agricultural extension agents? Fill out the brief form below:
Frequently Asked Questions: Oregon Soil & Extension
How do I get my soil tested in Oregon?
To test your soil in Oregon, 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 OSU Extension Recommended Soil Laboratories or your local county extension office.
How much does soil testing cost in Oregon?
Routine soil fertility analysis in Oregon typically costs $20 - $30 routine soil sample. Turnaround time for results is usually 5 to 7 business days.
Does every county in Oregon have a Cooperative Extension Office?
Yes. Every county in Oregon 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 Oregon.
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.