Circle K is a co-educational service, leadership development, and friendship organization, organized and sponsored by a Kiwanis club on a college or university campus. It is a self-governing organization and elects its own officers, conducts its own meetings, determines its own service activities, and establishes its own dues structure. Its Objects include the Objects of Kiwanis. Once organized, a Circle K club continues to be sponsored by a Kiwanis club. Although the ultimate responsibility for Circle is that of the Kiwanis Board of Directors, the sponsorship function is most directly carried out by the Kiwanis club Committee on Circle K Clubs, assisted by a faculty advisor (who may or may not be a Kiwanian) designated by the college or university administration.
District and International Conventions are held each year. At the International Convention, International officers are elected, the Constitution and Bylaws are amended, and Circle K members participate in a service project.