| Code | Name | Region |
|---|---|---|
| PTCR2 | Carvalhosa | 13 |
| PTCVA | Carvoeira | 11 |
| PTCAO | Carvoeiro | 8 |
| PTCRB | Casa Branca | |
| PTCCB | Casal Comba | 1 |
| PTCCM | Casal De Cima | 18 |
| PTCLV | Casal De Loivos | 17 |
| PTCSM | Casal Do Marco | 15 |
| PTCBN | Casal Dos Bernardos | 14 |
| PTCV5 | Casal Velho | 10 |
| PTCAS | Cascais | 11 |
| PTCPR | Castanheira De Pera | 10 |
| PTCRI | Castanheira Do Ribatejo | 11 |
| PTCBR | Castelo Branco | 5 |
| PTCMA | Castelo Da Maia | 13 |
| PTCPV | Castelo De Paiva | 1 |
| PTCHA | Canha | 15 |
| PTCNL | Canical | 30 |
| PTCNO | Canico | 30 |
| PTCTH | Cantanhede | 6 |
| PTCPC | Caparica | 15 |
| PTCPL | Capelo | 20 |
| PTCRO | Caramulo | 18 |
| PTCLE | Caranguejeira | 10 |
| PTCPH | Carapelhos | 6 |
| PTCRH | Carapinha | 6 |
| PTCCS | Carcavelos | 11 |
| PTCDS | Cardigos | 14 |
| PTCNX | Carnaxide | 11 |
| PTCRC | Carrasqueira | 15 |
| PTCZZ | Carrazeda De Anciaes | 4 |
| PTCRG | Carrazedo De Montenegro | 17 |
| PTREO | Carreco | 16 |
| PTCRR | Carregado | 11 |
| PTCRA | Carregal Do Sal | 18 |
| PTCGO | Carregosa | 1 |
| PTCTP | Caldas Das Taipas | 3 |
| PTCSJ | Caldas De Sao Jorge | 1 |
| PTCVZ | Caldas De Vizela | 3 |
| PTCDA | Caldas Do Moledo | 13 |
| PTCLH | Calheta, Island Madeira | 30 |
| PTCAL | Calheta, Island Sao Jorge | 20 |
| PTCDW | Calvaria De Cima | 10 |
| PTCMH | Camacha | 30 |
| PTCML | Camara De Lobos | 30 |
| PTCMT | Camarate | 11 |
| PTCES | Cambres | 18 |
| PTCAM | Caminha | 16 |
| PTCMO | Campelos | 11 |
| PTCPB | Campo De Besteiros | 18 |