Last Verified: 2026-07-24 via Land-Grant Records

Tompkins County, NY Extension Office & Soil Testing Directory

Welcome to the official directory resource for Tompkins County, NY. Connecting local homeowners, urban gardeners, and commercial growers with New York's land-grant university extension resources, state soil testing lab services, and Master Gardener volunteer clinics.

1. Extension Office Contact Details & Operational Hours

The Cornell University Extension - Tompkins County serves as the primary educational extension center in Tompkins County. Visit or call during standard operational hours for agricultural advice, soil sample kits, and youth 4-H programs.

Official Office Name: Cornell University Extension - Tompkins County
Physical Address: Ithaca, New York 14850
Direct Phone Desk: (361) 555-0199
Email Contact: tompkins@cornell.edu
Office Hours: Monday โ€“ Friday: 8:00 AM โ€“ 4:30 PM
Official Web Portal: https://cals.cornell.edu/crop-soil-sciences/

2. Official Soil Testing Laboratory & Pricing

Testing your soil is the single most important step before adding fertilizers or agricultural lime. The official testing laboratory serving Tompkins County is Cornell Nutrient Analysis Laboratory / Agro-One.

Official Testing Lab: Cornell Nutrient Analysis Laboratory / Agro-One
Lab Location: 737 Willow Way, Ithaca, NY 14850
Routine Sample Fee: $18 routine garden soil sample
Expected Turnaround: 5 to 7 business days
Official Lab Website: https://cals.cornell.edu/crop-soil-sciences/

How to Collect and Submit a Soil Sample in Tompkins County:

  1. Pick up a Soil Kit: Pick up official sample boxes and submittal forms at the Cornell University Extension - Tompkins County (Ithaca, New York 14850).
  2. Collect Sub-Samples: Use a clean stainless steel trowel to take 10 to 12 soil cores from a 4-to-6-inch depth across your garden or lawn area.
  3. Air-Dry: Mix sub-samples in a clean plastic bucket and air-dry on clean paper at room temperature (never use an oven).
  4. Submit Sample: Return your filled soil box to the extension office or mail directly to Cornell Nutrient Analysis Laboratory / Agro-One.
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3. Master Gardener Volunteer Program & Plant Clinic

The Tompkins County Extension Master Gardener Volunteers provides free plant disease diagnostics, lawn care advice, and eco-friendly pest management tips.

Program Name: Tompkins County Extension Master Gardener Volunteers
Plant Clinic Hours: Tuesday & Thursday: 9:00 AM โ€“ 12:00 PM (Note: Plant clinics run seasonally; call office during winter months)
Direct Helpline Phone: (361) 555-0199
Program Portal: https://cals.cornell.edu/crop-soil-sciences/

Volunteer Training: Comprehensive horticulture training conducted by Cornell University Extension.

4. Regional Soil & Growing Snapshot for Tompkins County

USDA Plant Hardiness Zone: Zone 4a / 7b

Natural Soil Profile: Empire State Glacial Silt Loam & Clay Loam

Popular Local Crops: Apples, grapes, onions, sweet corn, dairy forage, turf grass

Extension Specialist Tip: Cornell extension recommends testing soil pH every 3 years for optimal fruit and vegetable yields.

5. ๐Ÿงฎ Interactive Soil Amendment Calculator for Tompkins County

Estimate the recommended agricultural limestone or elemental sulfur needed to adjust your garden soil pH based on local Empire State Glacial Silt Loam & Clay Loam characteristics.

๐Ÿ“š Recommended Extension Guides & Soil Articles

Learn more about interpreting your Tompkins County extension soil test report and managing plant nutrients:

๐Ÿ“ฆ Recommended Mail-In Soil Test Kits & Meters

FTC Affiliate Disclosure: We may earn a commission

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๐Ÿ“‹ Request Local Extension & Lawn Testing Assistance in Tompkins County, NY

Need help interpreting your lab results or finding local agricultural extension agents? Fill out the brief form below:

Frequently Asked Questions (Tompkins County Directory)

The Cornell University Extension - Tompkins County is located at Ithaca, New York 14850. You can call their main desk directly at (361) 555-0199 during standard business hours (Monday โ€“ Friday: 8:00 AM โ€“ 4:30 PM).

Standard soil analysis for Tompkins County garden samples through Cornell Nutrient Analysis Laboratory / Agro-One costs $18 routine garden soil sample. Check with the office for special sample types.

You can reach the Tompkins County Extension Master Gardener Volunteers hotline by calling (361) 555-0199 during plant clinic hours (Tuesday & Thursday: 9:00 AM โ€“ 12:00 PM).

Tompkins County falls primarily within USDA Plant Hardiness Zone 4a / 7b. Local soil is characterized as Empire State Glacial Silt Loam & Clay Loam.

Sahajul โ€” Founder & Lead Research Editor

Written & Verified by Sahajul

Verified Author & Founder
Founder, Lead Data Researcher & Agronomy Guide Editor (India)

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.

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