Indiana Extension & Soil Testing Directory
Find your local Indiana County Cooperative Extension office, official state university soil analysis lab, and Master Gardener volunteer plant clinics.
🔬 State Soil Testing Laboratory
Official Lab: Purdue Extension Soil Testing Partner Laboratories
Standard Fee: $15 routine fertility test
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: Central Till Plain Silt Loam & Clay Loam
Hardiness Zones: Zone 5b / 6b
Popular Crops: Corn, soybeans, melons, tomatoes, bluegrass
Indiana clay loam soils require aeration and compost to maintain optimal microbial life.
Featured County Directories in Indiana (6 Listings)
Marion County
Extension Office: Purdue University Extension - Marion County
Soil Lab Fee: $15 routine fertility test
Phone: (180) 555-0199
Lake County
Extension Office: Purdue University Extension - Lake County
Soil Lab Fee: $15 routine fertility test
Phone: (180) 555-0199
Allen County
Extension Office: Purdue University Extension - Allen County
Soil Lab Fee: $15 routine fertility test
Phone: (180) 555-0199
Hamilton County
Extension Office: Purdue University Extension - Hamilton County
Soil Lab Fee: $15 routine fertility test
Phone: (180) 555-0199
St. Joseph County
Extension Office: Purdue University Extension - St. Joseph County
Soil Lab Fee: $15 routine fertility test
Phone: (181) 555-0199
Tippecanoe County
Extension Office: Purdue University Extension - Tippecanoe County
Soil Lab Fee: $15 routine fertility test
Phone: (181) 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 Indiana Statewide
Need help interpreting your lab results or finding local agricultural extension agents? Fill out the brief form below:
Frequently Asked Questions: Indiana Soil & Extension
How do I get my soil tested in Indiana?
To test your soil in Indiana, 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 Purdue Extension Soil Testing Partner Laboratories or your local county extension office.
How much does soil testing cost in Indiana?
Routine soil fertility analysis in Indiana typically costs $15 routine fertility test. Turnaround time for results is usually 5 to 7 business days.
Does every county in Indiana have a Cooperative Extension Office?
Yes. Every county in Indiana 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 Indiana.
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.