United States

Illinois District of Optimist International - - State district that includes events calendar, membership benefits, local clubs and youth clubs, newsletters, and contact details for its members and guests.

Optimist Club of Gilbert, Arizona - - A community service organization chartered in April 2003 that focuses on youth in the community. Includes club information, calendar of events, meetings, newsletter, and photos.

Optimist Club of Iowa City - - A community service club comprised of volunteer men and women dedicated to serving the community and its youth. Includes, officers, projects, and past financial gifts.

Optimist Club of North Side Indianapolis - - Indiana. Local citizens working together to provide ever-expanding service to youth, the community and the world. Meeting information, membership details, calendar of events, history, and projects.