| Name of the place | CERL ID of a place | Country | Longitude | Latitude | |
|---|---|---|---|---|---|
| Cayres (Haute-Loire) | cnl00050712 | France | 3.8078 | 44.9264 | |
| Céligny | cnl00022168 | Switzerland | 6.191111 | 46.352778 | |
| Celle | cnl00008136 | Germany | 10.08 | 52.6197222222222 | |
| Celleno | cnl00022273 | Italy | 12.1241666666667 | 42.5602777777778 | |
| Cento | cnl00008138 | Italy | 11.2797222222222 | 44.7197222222222 | |
| Céret | cnl00019160 | — | — | — | |
| Cérilly | cnl00019885 | France | 2.83305555555556 | 46.6166666666667 | |
| Cerreto di Spoleto | cnl00021551 | Italy | 12.9166666666667 | 42.8166666666667 | |
| Certaldo | cnl00011849 | Italy | 11.0397222222222 | 43.5497222222222 | |
| Cervera | cnl00008144 | Spain | 1.27055555555556 | 41.6655555555556 | |
| Cesena | cnl00008147 | Italy | 12.25 | 44.14 | |
| Ceuta | cnl00027811 | Spain | — | — | |
| Chabanais (Charente) | cnl00018198 | France | 0.7206 | 45.875 | |
| Chaillot | cnl00021923 | France | 2.287222 | 48.862778 | |
| Chalinargues | cnl00022715 | — | — | — | |
| Chalkis | cnl00035081 | Greece | 23.5991666666667 | 38.4633333333333 | |
| Châlon-sur-Saône | cnl00008157 | — | 4.75 | 46.78 | |
| Chalonnes-sur-Loire | cnl00021039 | France | — | — | |
| Châlons-sur-Marne | cnl00008156 | France | 4.37 | 48.95 | |
| Châlons-sur-Saône | cnl00019035 | France | 4.8528 | 46.7806 | |
| Chambéry | cnl00008103 | France | 5.9 | 45.6 | |
| Chambon | cnl00022133 | France | 2.4258 | 46.19 | |
| Chambord | cnl00000278 | France | 1.51666666666667 | 47.6163888888889 | |
| Chambourcy | cnl00020241 | France | — | — | |
| Chambray | cnl00018102 | — | — | — |