Delaware Extension & Soil Testing Directory
Find your local Delaware County Cooperative Extension office, official state university soil analysis lab, and Master Gardener volunteer plant clinics.
🔬 State Soil Testing Laboratory
Official Lab: University of Delaware Soil Testing Program
Standard Fee: $15 routine soil sample kit
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: Coastal Plain Silt Loam and Sandy Loam
Hardiness Zones: Zone 7a / 7b
Popular Crops: Corn, soybeans, lima beans, peaches, lawn grass
Delaware sandy soils leach nitrogen quickly; use organic compost to improve nutrient retention.
Featured County Directories in Delaware (3 Listings)
Kent County
Extension Office: University of Delaware Extension - Kent County
Soil Lab Fee: $15 routine soil sample kit
Phone: (100) 555-0199
New Castle County
Extension Office: University of Delaware Extension - New Castle County
Soil Lab Fee: $15 routine soil sample kit
Phone: (100) 555-0199
Sussex County
Extension Office: University of Delaware Extension - Sussex County
Soil Lab Fee: $15 routine soil sample kit
Phone: (100) 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 Delaware Statewide
Need help interpreting your lab results or finding local agricultural extension agents? Fill out the brief form below:
Frequently Asked Questions: Delaware Soil & Extension
How do I get my soil tested in Delaware?
To test your soil in Delaware, 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 University of Delaware Soil Testing Program or your local county extension office.
How much does soil testing cost in Delaware?
Routine soil fertility analysis in Delaware typically costs $15 routine soil sample kit. Turnaround time for results is usually 5 to 7 business days.
Does every county in Delaware have a Cooperative Extension Office?
Yes. Every county in Delaware 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 Delaware.
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.