| Name | What | Region | Country | Lat | Long | Elev ft. | Pop est |
|---|---|---|---|---|---|---|---|
| Cachalière | city | Guernsey | 49.71 | -2.20 | 0 | 6036 | |
| Calais | city | Guernsey | 49.43 | -2.54 | 0 | 21013 | |
| Camp du Roi | city | Guernsey | 49.48 | -2.56 | 29 | 29297 | |
| Camptréhard | city | Guernsey | 49.45 | -2.58 | 262 | 31942 | |
| Carmel | city | Guernsey | 49.44 | -2.56 | 308 | 28171 | |
| Choisi | city | Guernsey | 49.46 | -2.55 | 114 | 28086 | |
| Claire Mare | city | Guernsey | 49.46 | -2.65 | 95 | 15996 | |
| Clos Carre | city | Guernsey | 49.72 | -2.21 | 0 | 6228 | |
| Clos Est Mougues | city | Guernsey | 49.72 | -2.22 | 269 | 6042 | |
| Clos des Cables | city | Guernsey | 49.71 | -2.22 | 0 | 5993 | |
| Clos du Valle | city | Guernsey | 49.50 | -2.52 | 0 | 14741 | |
| Closios | city | Guernsey | 49.50 | -2.53 | 29 | 18937 | |
| Cobo | city | Guernsey | 49.47 | -2.59 | 95 | 29726 | |
| Cocagne | city | Guernsey | 49.49 | -2.51 | 0 | 12619 | |
| Cognons | city | Guernsey | 49.71 | -2.19 | 0 | 6025 | |
| Cotil du Val | city | Guernsey | 49.72 | -2.20 | 0 | 6039 | |
| Courtes Fallaizes | city | Guernsey | 49.43 | -2.54 | 0 | 20208 | |
| Courtil Liage | city | Guernsey | 49.71 | -2.20 | 0 | 6228 | |
| Courtil Quartier | city | Guernsey | 49.71 | -2.22 | 269 | 6011 | |
| Coutanchez | city | Guernsey | 49.47 | -2.55 | 22 | 27762 | |
| Crabby | city | Guernsey | 49.72 | -2.20 | 0 | 6228 |