San Marino City Club, commonly called "City Club," is a community and civic organization, which has served San Marino since 1926.  Its purpose is to secure for the citizens of San Marino Unified School District the best civic, educational and cultural services and facilities possible, and to encourage and promote the highest standards of citizenship among its membership. 

Founded as the San Marino Civic Improvement Association, the organization was renamed San Marino City Club and met for many years exclusively at Southwestern Academy.  City Club now meets at the San Marino Center, with an annual September barbecue meeting, traditionally at Southwestern Academy, and an annual event at the Huntington Library

City Club is limited to residents of the San Marino Unified School District, officials of the School District or the City of San Marino, and persons who conduct their business or profession within the School District.  Membership is granted in strict order of application.  Annual dues, including eight regular dinner meetings, are $105.