Barrios de Oregon C
- Cal Young (23)
- Cathedral Park (7)
- Caufield (3)
- Cedar Hills (15)
- Cedar Hills-Cedar Mill (31)
- Centennial (35)
- Central Beaverton (14)
- Central Eastside (8)
- Century West (8)
- Churchill (7)
- Clackamette Park (1)
- Collins View (1)
- Concordia (12)
- Cooper Mountain-Aloha North (48)
- Cooper Mountain-Aloha South (11)
- Country Club-South Shore (1)
- Crest Drive (1)
- Creston-Kenilworth (23)
- Crestwood (1)
- Croisan-Illahe (1)
- Cully (9)