Organizers
- City of Calistoga Recreation Services
- City of Cape Coral
- City of Cape Girardeau
- City of Capitola Recreation Department
- City of Carlsbad
- City of Cartersville Parks & Recreation
- City of Cartersville Parks & Recreation
- City of Casa Grande
- City of Casselberry
- City of Cedar Park - Parks & Recreation
- City of Cedar Park - Parks & Recreation
- City of Central Point Parks & Recreation
- City of Ceres
- City of Cerritos
- City of Chandler Parks and Recreation
- City of Chanhassen
- City of Charleston
- City of Charleston Department of Recreation
- City of Chula Vista
- CITY OF CLAREMONT
- City of Claremont Parks and Recreation
- City of Cleveland
- CIty of Coconut Creek
- City of Cookeville Department of Leisure Services and Public Facilities
- CITY OF COPPELL
- City of Coppell Wagon Wheel Tennis Center
- City of Corinth Community Relations
- City of Corinth Parks and Recreation Division
- City of Corona
- City of Corvallis Parks and Recreation
- City of Costa Mesa - Parks and Community Services
- City of Costa Mesa Public Services Department Recreation Division
- City of Cottonwood Parks and Recreation
- City of Cottonwood Parks and Recreation Department
- City of Covington Parks and Recreation
- City of Cripple Creek
- City of Crown Point
- City of Culver City Parks, Recreation and Community Services
- City of Cumming Recreation and Park Department
- City of Cupertino
- City of Cuyahoga Falls
- City of Cypress
- City of Dallas
- City of Daly City
- City of Danville Parks, Recreation, and Tourism
- City of Dardenne Prairie
- City of De Pere
- City of Debary Parks and Recreation, FL
- City of Del Mar Junior Lifeguard Program
- City of Delano
