| Cwmbran to Castle Rock (Colorado) | 4,592.72 mi (7,391.27 km) |
| Cwmbran to Castro Valley (California) | 5,253.13 mi (8,454.09 km) |
| Cwmbran to Catalina Foothills (Arizona) | 5,184.22 mi (8,343.20 km) |
| Cwmbran to Cataño (Puerto Rico) | 4,080.74 mi (6,567.31 km) |
| Cwmbran to Cathedral City (California) | 5,292.85 mi (8,518.03 km) |
| Cwmbran to Catonsville (Maryland) | 3,515.14 mi (5,657.07 km) |
| Cwmbran to Cave Spring (Virginia) | 3,741.28 mi (6,021.01 km) |
| Cwmbran to Cayce (South Carolina) | 3,937.75 mi (6,337.20 km) |
| Cwmbran to Cayey (Puerto Rico) | 4,098.58 mi (6,596.02 km) |
| Cwmbran to Cedar City (Utah) | 4,966.93 mi (7,993.50 km) |
| Cwmbran to Cedar Falls (Iowa) | 3,985.67 mi (6,414.32 km) |
| Cwmbran to Cedar Hill (Texas) | 4,647.79 mi (7,479.89 km) |
| Cwmbran to Cedar Lake (Indiana) | 3,848.03 mi (6,192.81 km) |
| Cwmbran to Cedar Mill (Oregon) | 4,828.71 mi (7,771.06 km) |
| Cwmbran to Cedar Park (Texas) | 4,788.25 mi (7,705.95 km) |
