The main offices at 423 Griffing Avenue are temporarily closed and the staff have been relocated to other facilities. You may contact the main phone number at 631-853-6155.

All of our other facilities remain open.

Welcome to Cornell Cooperative Extension of Suffolk County

 Cornell Cooperative Extension of Suffolk County assists and educates residents, businesses and professionals in a broad spectrum of topics by providing research-based information on parenting, diabetes management, nutrition and wellness, horticulture, environmental protection, marine restoration and sustainable agriculture.

Experts from our four main program areas—Family Health and Wellness, Marine, Agriculture and 4-H Youth Development—reach tens of thousands of adults, children, professionals and businesses each year.

We bring this free and low-cost knowledge directly to people at workshops, children’s camps, libraries and schools. We also work one-on-one with fisherman, farmers and growers to strengthen these industries, bringing tourism and advancing economic development. CCE programs have had a significant impact on communities and industry in Suffolk for nearly a century.

The Good Earth Gala

The Good Earth Gala is the signature event of the Education Foundation for Suffolk County Extension, Inc. to benefit the educational programs and research of Cornell Cooperative Extension of Suffolk County.

Pycnanthemum tenuifolium with pollinators

Evolving Long Island

A continuing education program for landscape architects and designers.

Suffolk Farmers' Markets

The 2019 listing of Farmers' Markets for Suffolk County residents. Our listing indicates which markets accept EBT. All markets accept FCC (Fresh Connect Coupons).

Cornell Chicken BBQ

Find Dr. Bob Baker's famous "Cornell BBQ Sauce" recipe here, get tips on broiling, and find guidelines for having a food-safe barbeque, here on our site.