| Code | Name | Region |
|---|---|---|
| FROLE | Collinee | 22 |
| FRURU | Collioure | 66 |
| FROBR | Collobrieres | 83 |
| FRCLM | Collonges-au-mont-d'or | 69 |
| FRUGE | Collonges-la-rouge | 19 |
| FROEV | Collonges-sous-saleve | 74 |
| FRZT7 | Collorgues | 30 |
| FRCMR | Colmar | 68 |
| FROEY | Colmey | 54 |
| FRCXX | Colognac | 30 |
| FRCL6 | Cologne | 32 |
| FRFCM | Colomars | 6 |
| FRCLW | Colombe | 38 |
| FRZSE | Colombe-la-fosse | 10 |
| FRCZE | Coarraze | 64 |
| FRCUX | Cobrieux | 59 |
| FRCCM | Cocumont | 47 |
| FRCDO | Codognan | 30 |
| FRCMU | Coetmieux | 22 |
| FROEX | Coex | 85 |
| FRCGJ | Cogles | 35 |
| FRCNG | Cognac | 16 |
| FRCES | Cognieres | 70 |
| FRCOG | Cognin | 73 |
| FRONY | Cognocoli | 2A |
| FRNWO | Cogny | 69 |
| FRCQK | Cogolin | 83 |
| FROHD | Cohade | 43 |
| FRFFY | Coiffy-le-haut | 52 |
| FRCGS | Coignieres | 78 |
| FR8OU | Coincy | 2 |
| FRC9G | Coingt | 2 |
| FRCJP | Coise-saint-jean-pied-gauthier | 73 |
| FRO9V | Coivert | 17 |
| FRYCV | Clerval | 25 |
| FRC2X | Clery-en-vexin | 95 |
| FRCA4 | Clery-saint-andre | 45 |
| FROU4 | Clery-sur-somme | 80 |
| FRCL3 | Clesse | 71 |
| FR888 | Cleurie | 88 |
| FRRS6 | Clevilliers | 28 |
| FRCCH | Clichy | 92 |
| FRYBS | Clichy-sous-bois | 93 |
| FRCJB | Climbach | 67 |
| FRHML | Clinchamp | 52 |
| FRYIO | Clion | 36 |
| FRXWB | Cliron | 8 |
| FRCLO | Clisson | 44 |
| FRHCN | Clohars-carnoet | 29 |
| FRCLZ | Clonas-sur-vareze | 38 |