New Hampshire Extension & Soil Testing Directory
Find your local New Hampshire County Cooperative Extension office, official state university soil analysis lab, and Master Gardener volunteer plant clinics.
🔬 State Soil Testing Laboratory
Official Lab: UNH Soil Testing Service
Standard Fee: $20 routine soil 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: Granitic Glacial Till Sandy Loam
Hardiness Zones: Zone 5b
Popular Crops: Apples, blueberries, brassicas, sweet corn, turf
New Hampshire granitic soils are acidic; routine liming is vital for vegetable production.
Featured County Directories in New Hampshire (1 Listing)
Hillsborough County
Extension Office: UNH Extension - Hillsborough County
Soil Lab Fee: $20 routine soil test
Phone: (603) 641-6060
Looking for Another County in New Hampshire?
Every county in New Hampshire 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 UNH Soil Testing Service or contact our editorial desk for direct local office hours.
Request Local Extension Info for Your CountyFrequently Asked Questions: New Hampshire Soil & Extension
How do I get my soil tested in New Hampshire?
To test your soil in New Hampshire, 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 UNH Soil Testing Service or your local county extension office.
How much does soil testing cost in New Hampshire?
Routine soil fertility analysis in New Hampshire typically costs $20 routine soil test. Turnaround time for results is usually 5 to 7 business days.
Does every county in New Hampshire have a Cooperative Extension Office?
Yes. Every county in New Hampshire 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 New Hampshire.
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.