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 Recommended Soil Testing Network
Standard Fee: $15 per routine garden 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: Glacial Till Silt Loam & Clay Loam
Hardiness Zones: Zone 6a
Popular Crops: Corn, soybeans, tomatoes, melons, cool-season turf
Indiana clay soils benefit from autumn compost applications to loosen soil texture.
Featured County Directories in Indiana (1 Listing)
Marion County
Extension Office: Purdue Extension - Marion County
Soil Lab Fee: $15 per routine garden soil sample
Phone: (317) 275-9286
Looking for Another County in Indiana?
Every county in Indiana is supported by the state Land-Grant University Extension system. If your specific county directory is currently being indexed, you can submit your soil samples directly to Purdue Extension Recommended Soil Testing Network or contact our editorial desk for direct local office hours.
Request Local Extension Info for Your CountyFrequently 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 Recommended Soil Testing Network or your local county extension office.
How much does soil testing cost in Indiana?
Routine soil fertility analysis in Indiana typically costs $15 per routine garden soil sample. 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.