| Name of the place | CERL ID of a place | Country | Longitude | Latitude | |
|---|---|---|---|---|---|
| Couvin | cnl00022739 | Belgium | — | — | |
| Covehithe (Suffolk) | cnl00050734 | England | 1.705 | 52.376 | |
| Coventry | cnl00008421 | England | -1.55 | 52.42 | |
| Cranborne (Dorset) | — | England | -1.922 | 50.919 | |
| Craon | cnl00027033 | France | 0.95 | 47.85 | |
| Crécy-en-Brie | cnl00021068 | — | — | — | |
| Creil | cnl00022258 | — | 2.48305555555556 | 49.2666666666667 | |
| Crema | — | Italy | — | — | |
| Cremona | cnl00027221 | Italy | 10.0291666666667 | 45.1191666666667 | |
| Crépy-en-Valois | cnl00019804 | France | — | — | |
| Crest | cnl00027576 | France | 3.13305555555556 | 45.6830555555556 | |
| Creußen | cnl00036550 | Germany | — | — | |
| Crevalcore | cnl00021584 | Italy | — | — | |
| Crèvecoeur (Netherlands) | — | Netherlands | 5.267043 | 51.735269 | |
| Croft-on-Tees (Yorkshire) | cnl00050685 | England | -1.555105 | 54.483485 | |
| Croissy-sur-Seine | — | France | — | — | |
| Cronheim | cnl00020290 | Germany | — | — | |
| Crosby Ravensworth | cnl00024007 | England | — | — | |
| Croydon | cnl00002927 | England | -0.1 | 51.3666666666667 | |
| Cuellar | cnl00021652 | Spain | -4.35 | 41.383333 | |
| Cuenca | cnl00008467 | Spain | -2.137416 | 40.070393 | |
| Cuenta | — | Spain | — | — | |
| Cuisy (Seine-et-Marne) | — | France | — | — | |
| Culemborg | cnl00008472 | Netherlands | 5.23 | 51.95 | |
| Culross (Perthshire) | — | Scotland | -3.6293 | 56.0554 |