Key Club is the oldest and largest service program for high school students. What makes Key Club so successful is the fact that it is a student-led organization that teaches leadership through serving others. Members of the Kiwanis International family, Key Club members build themselves as they build their schools and communities.

Today, Key Club exists on more than 5,000 high school campuses, primarily in the United States and Canada. Growth efforts, however, have taken the Key Club experience internationally to Canada, the Caribbean nations, Central and South America, and most recently to Asia and Australia.