| Code | Name | Region |
|---|---|---|
| FRIIM | Cumieres | 51 |
| FR3CM | Cumont | 82 |
| FRCU8 | Cunac | 81 |
| FRCGZ | Cuneges | 24 |
| FRUJL | Cruejouls | 12 |
| FRCKT | Cruet | 73 |
| FRYGC | Crugey | 21 |
| FRC7G | Cruguel | 56 |
| FRCR9 | Crulai | 61 |
| FRCQR | Cruscades | 11 |
| FRKS5 | Cruseilles | 74 |
| FRUII | Cruviers-lascours | 30 |
| FRXKY | Cruzille | 71 |
| FRCZP | Cruzilles-les-mepillat | 1 |
| FRKLY | Cruzy | 34 |
| FRCYR | Cry | 89 |
| FR2C7 | Cubjac | 24 |
| FRCUB | Cublize | 69 |
| FRXCZ | Cubnezais | 33 |
| FRYOG | Cubry-les-soing | 70 |
| FRCCP | Cubzac-les-ponts | 33 |
| FRHHY | Cuchery | 51 |
| FRGYY | Cucugnan | 11 |
| FRUUU | Cucuron | 84 |
| FRCOX | Croix | 90 |
| FRCXH | Croix-chapeau | 17 |
| FROXR | Croixrault | 80 |
| FRCXL | Crolles | 38 |
| FRCRO | Cronenbourg | 67 |
| FRKU5 | Cros-de-georand | 7 |
| FRCNE | Crosne/paris | 91 |
| FRXV9 | Crossac | 44 |
| FRSS8 | Crosses | 18 |
| FROVC | Crosville-sur-scie | 76 |
| FRC3R | Crotelles | 37 |
| FRTTT | Crottet | 1 |
| FROEL | Crouseilles | 64 |
| FR2CR | Crouttes | 61 |
| FRQSM | Crouttes-sur-marne | 2 |
| FRCQY | Crouy | 2 |
| FRRSO | Crouy-sur-ourcq | 77 |
| FROZS | Crouzilles | 37 |
| FRCZN | Crozon | 29 |
| FRQCU | Cruas | 7 |
| FRRYS | Creysse | 24 |
| FRCZA | Crezancy | 2 |
| FRVH4 | Crezancy-en-sancerre | 18 |
| FRCRK | Crillon | 60 |
| FRC2B | Crillon-le-brave | 84 |
| FROIO | Crimolois | 21 |