Colorado State University Extension

Colorado State University Extension in Jefferson County (CSU  ExtensColorado State University Extension Logoion) provides information and education and encourages citizens to  apply research-based knowledge to local needs. The local Extension  determines what issues, concerns and needs are unique to Jefferson  County, and offers sound, effective solutions. Whether you have a  question about financial literacy, nutrition, weeds, pests or gardens,  4-H youth development, native plants or renewable energy, CSU Extension  can connect you to the latest, most accurate data.

For over 100  years, Extension has helped people in Colorado find the answers they  need—for a healthy home life and successful business. In addition to  local resources in the Extension office on the Jefferson County  Fairgrounds, our partners at extension offer access to a nation-wide network of professionals who can help answer specific questions and solve distinctive problems. See more about CSU Extension in Jefferson County.

Jefferson County Extension programs


4-H Summer Camps

Jefferson County 4-H offers two outstanding summer day camp programs for kids between 3rd and 6th grades.

4-H Youth Development

The primary goal of 4-H is to assist youth in developing life skills that help them live productive and satisfying lives. 4-H projects now include robotics, rocketry and other topics of current interest.

Family and Consumer Sciences

We conduct classes and provide research-based information on topics such as bankruptcy, divorce, disability, living on fixed income, planning, spending, saving and investing skills.

Horticulture – Yard and Garden

Your source for horticultural programs and classes, gardening help, plant diagnostics and the LawnCheck program.

Native Plant Master Program

Learn about plants native to Colorado, sustainable landscapes and threats to native ecosystems from invasive weeds.

Nutrition Education

Jefferson County Extension administers the Expanded Food and Nutrition Education Program (EFNEP) for limited resource audiences.

Urban Agriculture

Recognizing the movement towards local food and local food production, Jefferson County Extension has participated in a Colorado State University Extension regional Urban Agriculture effort to provide research-based information and education on this topic.

Contact the Jefferson County CSU Extension Office

  • Phone: 303-271-6620

Extension programs are available to all without discrimination.