| Diamond Bar to Cold Springs (Nevada) | 411.10 mi (661.60 km) |
| Diamond Bar to Coldwater (Michigan) | 1,856.96 mi (2,988.49 km) |
| Diamond Bar to Colesville (Maryland) | 2,273.56 mi (3,658.93 km) |
| Diamond Bar to College (Alaska) | 2,472.99 mi (3,979.89 km) |
| Diamond Bar to College Park (Georgia) | 1,906.13 mi (3,067.61 km) |
| Diamond Bar to College Park (Maryland) | 2,277.54 mi (3,665.35 km) |
| Diamond Bar to College Station (Texas) | 1,276.38 mi (2,054.13 km) |
| Diamond Bar to Collegedale (Tennessee) | 1,858.27 mi (2,990.59 km) |
| Diamond Bar to Colleyville (Texas) | 1,191.97 mi (1,918.29 km) |
| Diamond Bar to Collierville (Tennessee) | 1,596.95 mi (2,570.05 km) |
| Diamond Bar to Collinsville (Illinois) | 1,574.79 mi (2,534.38 km) |
| Diamond Bar to Colonia (New Jersey) | 2,409.03 mi (3,876.95 km) |
| Diamond Bar to Colonial Heights (Virginia) | 2,263.84 mi (3,643.29 km) |
| Diamond Bar to Colonial Park (Pennsylvania) | 2,279.15 mi (3,667.94 km) |
| Diamond Bar to Colorado Springs (Colorado) | 798.88 mi (1,285.67 km) |
