| Code | Name | Region |
|---|---|---|
| FRZZU | Carnoules | 83 |
| FRZAB | Carnoux-en-provence | 13 |
| FRC6R | Caro | 56 |
| FRCR8 | Carolles | 50 |
| FRZMB | Caromb | 84 |
| FRCOZ | Caronte | 13 |
| FRCRP | Carpentras | 84 |
| FRCQT | Carpiquet | 14 |
| FRCQU | Carquefou | 44 |
| FRCQI | Carqueiranne | 83 |
| FRCSP | Carrieres-sous-poissy | 78 |
| FRCSN | Carrieres-sur-seine | 78 |
| FR4JF | Carro | 13 |
| FRCRN | Carantec | 29 |
| FRCBC | Carbon-blanc | 33 |
| FRARO | Carbonne | 31 |
| FRCKA | Carcans | 33 |
| FRCCF | Carcassonne | 11 |
| FRCP6 | Carcen-ponson | 40 |
| FRVCV | Carces | 83 |
| FRCA6 | Cardan | 33 |
| FRQDS | Cardesse | 64 |
| FRDET | Cardet | 30 |
| FRCTA | Carentan | 50 |
| FRXIR | Carentoir | 56 |
| FRCG3 | Cargese | 2A |
| FRCXP | Carhaix-plouguer | 29 |
| FRCGN | Carignan | 8 |
| FRCGB | Carignan-de-bordeaux | 33 |
| FRCP8 | Carlepont | 60 |
| FRCGL | Carling | 57 |
| FRUXL | Carlux | 24 |
| FRCMX | Carmaux | 81 |
| FRCCK | Cantois | 33 |
| FRCBV | Cany-barville | 76 |
| FRCBT | Capbreton | 40 |
| FRCPA | Cap-d'ail | 6 |
| FRCAP | Capdenac-gare | 12 |
| FRCDQ | Capdenac-le-haut | 46 |
| FRLXZ | Capelle-les-grands | 27 |
| FRQCL | Capelle-les-grands | 27 |
| FRCDX | Capendu | 11 |
| FRAPE | Capens | 31 |
| FRCPZ | Capestang | 34 |
| FRAPA | Capian | 33 |
| FRCP3 | Capinghem | 59 |
| FRCQQ | Caplong | 33 |
| FRC2P | Capo Pertusato | 2A |
| FRCGR | Cappelle-la-grande | 59 |
| FRTIX | Captieux | 33 |