Cities
- Caledon ON
- Cambridge ON
- Campbellford ON
- Cantley QC
- Carleton Place ON
- Carman ON
- Chatham-Kent ON
- Chatsworth ON
- Chelsea QC
- Chesley ON
- Clarington ON
- Clearwater ON
- Clinton ON
- Cobourg ON
- Coldwater ON
- Collingwood ON
- Conestogo ON
- Corunna ON
- Courtice ON
- Cranbrook ON
- Creemore ON
- Crofton ON
- Cumberland ON
- Curve Lake ON