| Pontypridd to Castle Rock (Colorado) | 4,583.33 mi (7,376.16 km) |
| Pontypridd to Castro Valley (California) | 5,245.76 mi (8,442.24 km) |
| Pontypridd to Catalina Foothills (Arizona) | 5,174.69 mi (8,327.85 km) |
| Pontypridd to Cataño (Puerto Rico) | 4,066.57 mi (6,544.52 km) |
| Pontypridd to Cathedral City (California) | 5,284.24 mi (8,504.16 km) |
| Pontypridd to Catonsville (Maryland) | 3,502.95 mi (5,637.45 km) |
| Pontypridd to Cave Spring (Virginia) | 3,729.11 mi (6,001.42 km) |
| Pontypridd to Cayce (South Carolina) | 3,925.31 mi (6,317.17 km) |
| Pontypridd to Cayey (Puerto Rico) | 4,084.41 mi (6,573.23 km) |
| Pontypridd to Cedar City (Utah) | 4,958.34 mi (7,979.67 km) |
| Pontypridd to Cedar Falls (Iowa) | 3,975.37 mi (6,397.75 km) |
| Pontypridd to Cedar Hill (Texas) | 4,636.67 mi (7,462.00 km) |
| Pontypridd to Cedar Lake (Indiana) | 3,837.07 mi (6,175.17 km) |
| Pontypridd to Cedar Mill (Oregon) | 4,822.46 mi (7,761.00 km) |
| Pontypridd to Cedar Park (Texas) | 4,777.00 mi (7,687.84 km) |
