| Code | Name | Region |
|---|---|---|
| FRCAU | Cauderan | 33 |
| FRCAD | Caudies-de-fenouilledes | 66 |
| FRUUA | Caudrot | 33 |
| FRCDY | Caudry | 59 |
| FRCFY | Cauffry | 60 |
| FREQR | Caulieres | 80 |
| FRCNF | Caulnes | 22 |
| FRTNO | Caumont | 33 |
| FRXCE | Caumont-l'evente | 14 |
| FRC5T | Caumont-sur-durance | 84 |
| FRCQG | Caumont-sur-garonne | 47 |
| FRUNL | Cauneille | 40 |
| FRCMV | Caunes-minervois | 11 |
| FRTIS | Castetis | 64 |
| FROXG | Castetnau-camblong | 64 |
| FRATE | Castets | 40 |
| FRCDH | Castets-en-dorthe | 33 |
| FRTXX | Castex | 32 |
| FRXCX | Castex-d'armagnac | 32 |
| FR3CL | Castillon | 6 |
| FRCD5 | Castillon-de-castets | 33 |
| FRCDU | Castillon-du-gard | 30 |
| FRC4A | Castillon-en-auge | 14 |
| FRKJH | Castillon-la-bataille | 33 |
| FRCTS | Castillonnes | 47 |
| FRCAT | Castres | 44 |
| FRCAS | Castres | 81 |
| FRGCG | Castres-gironde | 33 |
| FRCSJ | Castries | 34 |
| FRCEY | Catenoy | 60 |
| FRCTI | Catillon-fumechon | 60 |
| FRCTP | Cattenieres | 59 |
| FROM3 | Cattenom | 57 |
| FRZZA | Castelnau-d'auzan | 32 |
| FRCGM | Castelnaud-de-gratecambe | 47 |
| FRT9C | Castelnau-de-brassac | 81 |
| FRDEG | Castelnau-de-guers | 34 |
| FRDDL | Castelnau-de-levis | 81 |
| FRCMD | Castelnau-de-medoc | 33 |
| FRNUU | Castelnau-de-montmiral | 81 |
| FRCDS | Castelnau-d'estretefonds | 31 |
| FRCTC | Castelnaud-la-chapelle | 24 |
| FRCQZ | Castelnau-le-lez | 34 |
| FRCED | Castelnau-montratier | 46 |
| FRNRB | Castelnau-riviere-basse | 65 |
| FRGJG | Castelnau-sur-gupie | 47 |
| FRC3V | Castelnau-valence | 30 |
| FR22A | Castelreng | 11 |
| FRCTN | Castelsarrasin | 82 |
| FRTZN | Castel-sarrazin | 40 |