| Diamond Bar to Channelview (Texas) | 1,360.04 mi (2,188.77 km) |
| Diamond Bar to Chantilly (Virginia) | 2,250.67 mi (3,622.11 km) |
| Diamond Bar to Chaparral (New Mexico) | 674.28 mi (1,085.15 km) |
| Diamond Bar to Chapel Hill (North Carolina) | 2,185.32 mi (3,516.94 km) |
| Diamond Bar to Charleston (Illinois) | 1,676.04 mi (2,697.33 km) |
| Diamond Bar to Charleston (South Carolina) | 2,171.99 mi (3,495.48 km) |
| Diamond Bar to Charleston (West Virginia) | 2,027.28 mi (3,262.59 km) |
| Diamond Bar to Charlotte (North Carolina) | 2,092.88 mi (3,368.17 km) |
| Diamond Bar to Charlottesville (Virginia) | 2,199.20 mi (3,539.27 km) |
| Diamond Bar to Chaska (Minnesota) | 1,484.41 mi (2,388.92 km) |
| Diamond Bar to Chatham (Illinois) | 1,596.63 mi (2,569.52 km) |
| Diamond Bar to Chattanooga (Tennessee) | 1,846.97 mi (2,972.41 km) |
| Diamond Bar to Cheat Lake (West Virginia) | 2,119.23 mi (3,410.57 km) |
| Diamond Bar to Chelsea (Alabama) | 1,787.08 mi (2,876.02 km) |
| Diamond Bar to Chelsea (Massachusetts) | 2,571.96 mi (4,139.17 km) |
