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 Lab
Standard Fee: $20 standard 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: Glacial Sandy Loam & Stony Silt
Hardiness Zones: Zone 4b / 6a
Popular Crops: Apples, blueberries, maple sugar foliage, cool-season turf
Granite State soils are naturally acidic; test soil to determine limestone needs.
Featured County Directories in New Hampshire (10 Listings)
Belknap County
Extension Office: University of New Hampshire Extension - Belknap County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 555-0199
Carroll County
Extension Office: University of New Hampshire Extension - Carroll County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 555-0199
Cheshire County
Extension Office: University of New Hampshire Extension - Cheshire County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 555-0199
Coos County
Extension Office: University of New Hampshire Extension - Coos County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 555-0199
Grafton County
Extension Office: University of New Hampshire Extension - Grafton County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 555-0199
Hillsborough County
Extension Office: University of New Hampshire Extension - Hillsborough County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 555-0199
Merrimack County
Extension Office: University of New Hampshire Extension - Merrimack County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 555-0199
Rockingham County
Extension Office: University of New Hampshire Extension - Rockingham County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 555-0199
Strafford County
Extension Office: University of New Hampshire Extension - Strafford County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 555-0199
Sullivan County
Extension Office: University of New Hampshire Extension - Sullivan County
Soil Lab Fee: $20 standard routine soil sample
Phone: (330) 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 New Hampshire Statewide
Need help interpreting your lab results or finding local agricultural extension agents? Fill out the brief form below:
Frequently 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 Lab 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 standard routine soil sample. 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.