| Code | Name | Region |
|---|---|---|
| CACAV | Cavendish | PE |
| CACWO | Cawston | BC |
| CACLY | Cayley | AB |
| CACYG | Cayuga | ON |
| CACWR | Central Waterville | NB |
| CAYCE | Centralia | ON |
| CACBU | Centre Burlington | NS |
| CACIS | Centre Island | ON |
| CACEN | Centreville | NB |
| CANLC | Centreville | NL |
| CACTV | Centreville | NS |
| CACFO | Cessford | AB |
| CACKR | Chalk River | ON |
| CACGN | Carignan | QC |
| CACLT | Carleton | QC |
| CACLO | Carleton Place | ON |
| CACLS | Carlisle | ON |
| CARLS | Carlsbad Springs | ON |
| CACS8 | Carlyle | SK |
| CACMN | Carman | MB |
| CACMV | Carmanville | NL |
| CACRN | Caroline | AB |
| CACRP | Carp | ON |
| CACLD | Carseland | AB |
| CACTI | Carstairs | AB |
| CAHTC | Carthage | ON |
| CARTE | Cartier | MB |
| CACRT | Cartier | ON |
| CAYCV | Cartierville | QC |
| CAYRF | Cartwright | NL |
| CACRV | Carvel | AB |
| CACSS | Casselman | ON |
| CACSD | Cassidy | BC |
| CACAC | Cap-chat | QC |
| CACME | Cap-de-la-madeleine | QC |
| CACPR | Cape Broyle | NL |
| CACDO | Cape Dorset | NU |
| CACPY | Cape Ray | NL |
| CACTO | Cape Tormentine | NB |
| CAYCJ | Cape-saint-james | BC |
| CACAP | Cap-pele | NB |
| CACEE | Cap-sante | QC |
| CACSI | Cap-st-ignace | QC |
| CACAQ | Caraquet | NB |
| CACBY | Carberry | MB |
| CACBN | Carbon | AB |
| CACRB | Carbonear | NL |
| CACAR | Carcon City/toronto | ON |
| CACDG | Cardigan | PE |
| CACDN | Cardinal | ON |