| Pontypridd to Cicero (Illinois) | 3,827.79 mi (6,160.24 km) |
| Pontypridd to Cimarron Hills (Colorado) | 4,604.54 mi (7,410.30 km) |
| Pontypridd to Cincinnati (Ohio) | 3,823.62 mi (6,153.52 km) |
| Pontypridd to Cinco Ranch (Texas) | 4,734.99 mi (7,620.23 km) |
| Pontypridd to Circleville (Ohio) | 3,739.37 mi (6,017.94 km) |
| Pontypridd to Citrus (California) | 5,316.20 mi (8,555.60 km) |
| Pontypridd to Citrus Heights (California) | 5,165.79 mi (8,313.54 km) |
| Pontypridd to Citrus Park (Florida) | 4,275.53 mi (6,880.80 km) |
| Pontypridd to Claiborne (Louisiana) | 4,450.07 mi (7,161.70 km) |
| Pontypridd to Claremont (California) | 5,309.87 mi (8,545.42 km) |
| Pontypridd to Claremont (New Hampshire) | 3,148.27 mi (5,066.64 km) |
| Pontypridd to Claremore (Oklahoma) | 4,395.69 mi (7,074.18 km) |
| Pontypridd to Clarksburg (Maryland) | 3,526.24 mi (5,674.94 km) |
| Pontypridd to Clarksburg (West Virginia) | 3,648.41 mi (5,871.55 km) |
| Pontypridd to Clarksdale (Mississippi) | 4,302.51 mi (6,924.22 km) |
