Barrios de Oregon C
- Cal Young (22)
- Cathedral Park (12)
- Caufield (5)
- Cedar Hills (4)
- Cedar Hills-Cedar Mill (29)
- Centennial (15)
- Central Beaverton (6)
- Central Eastside (7)
- Century West (8)
- Churchill (12)
- Clackamette Park (1)
- Collins View (4)
- Concordia (15)
- Cooper Mountain-Aloha North (57)
- Cooper Mountain-Aloha South (5)
- Country Club-South Shore (1)
- Crest Drive (7)
- Creston-Kenilworth (17)
- Croisan-Illahe (3)
- Cully (15)