| Pontypridd to Cookeville (Tennessee) | 4,004.08 mi (6,443.95 km) |
| Pontypridd to Coolidge (Arizona) | 5,163.06 mi (8,309.14 km) |
| Pontypridd to Coon Rapids (Minnesota) | 3,883.91 mi (6,250.55 km) |
| Pontypridd to Cooper City (Florida) | 4,280.57 mi (6,888.91 km) |
| Pontypridd to Coos Bay (Oregon) | 4,985.21 mi (8,022.92 km) |
| Pontypridd to Copiague (New York) | 3,303.87 mi (5,317.07 km) |
| Pontypridd to Coppell (Texas) | 4,618.34 mi (7,432.50 km) |
| Pontypridd to Copperas Cove (Texas) | 4,749.25 mi (7,643.17 km) |
| Pontypridd to Coral Gables (Florida) | 4,297.20 mi (6,915.67 km) |
| Pontypridd to Coral Springs (Florida) | 4,268.16 mi (6,868.95 km) |
| Pontypridd to Coral Terrace (Florida) | 4,296.47 mi (6,914.49 km) |
| Pontypridd to Coralville (Iowa) | 3,981.47 mi (6,407.55 km) |
| Pontypridd to Coram (New York) | 3,278.99 mi (5,277.03 km) |
| Pontypridd to Corcoran (California) | 5,259.68 mi (8,464.64 km) |
| Pontypridd to Cordele (Georgia) | 4,134.45 mi (6,653.76 km) |
