Rhode Island Extension & Soil Testing Directory
Find your local Rhode Island County Cooperative Extension office, official state university soil analysis lab, and Master Gardener volunteer plant clinics.
🔬 State Soil Testing Laboratory
Official Lab: URI Soil Testing Services & Partner Labs
Standard Fee: $15 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: Narragansett Bay Sandy Loam
Hardiness Zones: Zone 6a / 7a
Popular Crops: Apples, berries, sweet corn, lawn grass
Coastal Rhode Island soils are sandy and acidic; incorporate compost for moisture holding.
Featured County Directories in Rhode Island (5 Listings)
Bristol County
Extension Office: University of Rhode Island Extension - Bristol County
Soil Lab Fee: $15 routine garden soil sample
Phone: (440) 555-0199
Kent County
Extension Office: University of Rhode Island Extension - Kent County
Soil Lab Fee: $15 routine garden soil sample
Phone: (440) 555-0199
Newport County
Extension Office: University of Rhode Island Extension - Newport County
Soil Lab Fee: $15 routine garden soil sample
Phone: (440) 555-0199
Providence County
Extension Office: University of Rhode Island Extension - Providence County
Soil Lab Fee: $15 routine garden soil sample
Phone: (440) 555-0199
Washington County
Extension Office: University of Rhode Island Extension - Washington County
Soil Lab Fee: $15 routine garden soil sample
Phone: (440) 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 Rhode Island Statewide
Need help interpreting your lab results or finding local agricultural extension agents? Fill out the brief form below:
Frequently Asked Questions: Rhode Island Soil & Extension
How do I get my soil tested in Rhode Island?
To test your soil in Rhode Island, 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 URI Soil Testing Services & Partner Labs or your local county extension office.
How much does soil testing cost in Rhode Island?
Routine soil fertility analysis in Rhode Island typically costs $15 routine garden soil sample. Turnaround time for results is usually 5 to 7 business days.
Does every county in Rhode Island have a Cooperative Extension Office?
Yes. Every county in Rhode Island 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 Rhode Island.
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.