Jefferson citizens are actively involved in more than 55 clubs and organizations to share hobbies, special interests and support community-oriented projects.  Local chapters of service groups include; the American Legion Reinhardt-Windl Unit 164, Kiwanis Club, Knights of Columbus, Lions Club, Optimist Club, Rotary Club, and Endl-Gruennert Veterans of Foreign Wars Post 3589.

The Jefferson Senior Center offers a wide range of activities and programs for seniors.

The UW Extension office provides support for the 4-H youth groups throughout Jefferson County.

Kids are encouraged to be part of sports and service groups including; Boy Scouts, Girl Scouts, Falcon Friends and Explorers.