| Code | Name | Region |
|---|---|---|
| FRCJY | Civaux | 86 |
| FRCV6 | Civens | 42 |
| FRXLZ | Civrac-de-blaye | 33 |
| FRZMW | Civrac-en-medoc | 33 |
| FRCD2 | Civrac-sur-dordogne | 33 |
| FRCIC | Civray | 18 |
| FRCIV | Civray | 86 |
| FRL37 | Civray-de-touraine | 37 |
| FRCZG | Civrieux-d'azergues | 69 |
| FRCZ2 | Cizely | 58 |
| FRAP9 | Clacy-et-thierret | 2 |
| FRC66 | Claira | 66 |
| FRXLS | Clairac | 47 |
| FRCLX | Clairoix | 60 |
| FRLO9 | Chorey-les-beaune | 21 |
| FRCGH | Chorges | 5 |
| FRCOY | Chouilly | 51 |
| FRUSY | Choussy | 41 |
| FR3CS | Chouze-sur-loire | 37 |
| FRHZC | Chouzy-sur-cisse | 41 |
| FRUL5 | Chuelles | 45 |
| FRG8R | Chusclan | 30 |
| FRUZS | Chuzelles | 38 |
| FRCBP | Ciboure | 64 |
| FRCI7 | Ciel | 71 |
| FRCQP | Cinq-mars-la-pile | 37 |
| FRH3G | Cintegabelle | 31 |
| FRTXH | Cintheaux | 14 |
| FRINT | Cintre | 35 |
| FRCDA | Cire-d'aunis | 17 |
| FRCIO | Cires-les-mello | 60 |
| FRTNW | Cirey-les-pontailler | 21 |
| FRXCO | Cirfontaines-en-ornois | 52 |
| FRRRO | Ciron | 36 |
| FRCEM | Chire-en-montreuil | 86 |
| FR3CR | Chirens | 38 |
| FRUYS | Chiroubles | 69 |
| FRCIP | Chiry-ourscamps | 60 |
| FRCII | Chissay-en-touraine | 41 |
| FRCC7 | Chissey-les-macon | 71 |
| FRCH7 | Chissey-sur-loue | 39 |
| FRUPL | Chitenay | 41 |
| FRHGT | Chitry | 89 |
| FRC3L | Chivy-les-etouvelles | 2 |
| FRCHQ | Chocques | 62 |
| FR2CG | Choignes | 52 |
| FROY3 | Choisey | 39 |
| FRCIY | Choisy | 74 |
| FRCIA | Choisy-au-bac | 60 |
| FRCHO | Choisy-le-roi | 94 |