Cooperative Extension System Offices

This page of our Web site will help you find your nearest Cooperative Extension office. The Cooperative Extension System is a nationwide educational network. Each U.S. state and territory has a state office at its land-grant university and a network of local or regional offices. These offices are staffed by one or more experts who provide useful, practical, and research-based information to agricultural producers, small business owners, youth, consumers, and others in rural areas and communities of all sizes.

USA Cooperative Extension Map Tennessee Wyoming Wisconsin West Virginia Virginia Vermont Utah Pennsylvania Texas South Dakota South Carolina Rhode Island Puerto Rico Oregon Oklahoma Ohio North Dakota New Mexico North Carolina New York New Jersery New Hampshire Nebraska Nevada Maryland Montana Missouri Mississippi Minnesota Michigan Maine Massachusetts Louisiana Kentucky Kansas Indiana Idaho Illinois Iowa Hawaii Georgia Florida Colorado Deleware Connecticut California Arizona Arkansas Alaska Alabama Washington usa

Other Cooperative's   
Guam Federated States of Micronesia Northern Marianas
Virgin Islands
Washington, D.C.


You might have been told to contact your local cooperative extension at one time or another. If so, when someone recommends that you contact your local office with a gardening question, more than likely you will be talking with a Master Gardener Volunteer although there is usually an agriculture and horticulture agent available. Master Gardener volunteers are interviewed for the program and once accepted, they are trained by Extension and University Staff as well as local horticulture professionals in many facets of horticulture including: taxonomy, plant pathology, entomology, cultural growing requirements, integrated pest management, wildlife control and much more.

Once a Master Gardener trainee completes their classroom training they are required to volunteer a designated amount of hours back to the program by answering questions on the phone and at fairs and festivals, speaking to groups, participating in display gardens and other projects as needed in their service area.

What Does Cooperative Extension Have to Offer the Home Gardener?

Some of the services provided at your local Extension Office, often for free or a nominal charge, are:

  • Soil testing
  • Fact Sheets on cultural requirements, diseases and pests
  • Information on Frost Dates
  • Plant Recommendations by Area
  • Wildlife Deterrent Info
Most offices also have hours when you can bring in a sample of your plant problem or garden insect for identification. To locate your local Extension office just click on your state on the map above. Most local and regional office now have their own web sites and can tell you what services they offer and maybe even how you can become a Master Gardener for your area.