| Diamond Bar to Carlsbad (California) | 67.77 mi (109.06 km) |
| Diamond Bar to Carlsbad (New Mexico) | 792.09 mi (1,274.75 km) |
| Diamond Bar to Carmel (Indiana) | 1,785.85 mi (2,874.05 km) |
| Diamond Bar to Carmichael (California) | 374.95 mi (603.42 km) |
| Diamond Bar to Carney (Maryland) | 2,297.47 mi (3,697.41 km) |
| Diamond Bar to Carnot-Moon (Pennsylvania) | 2,099.46 mi (3,378.76 km) |
| Diamond Bar to Carol Stream (Illinois) | 1,697.17 mi (2,731.33 km) |
| Diamond Bar to Carolina (Puerto Rico) | 3,351.03 mi (5,392.96 km) |
| Diamond Bar to Carolina Forest (South Carolina) | 2,217.82 mi (3,569.23 km) |
| Diamond Bar to Carpentersville (Illinois) | 1,691.40 mi (2,722.05 km) |
| Diamond Bar to Carpinteria (California) | 100.71 mi (162.08 km) |
| Diamond Bar to Carrboro (North Carolina) | 2,182.64 mi (3,512.61 km) |
| Diamond Bar to Carroll (Iowa) | 1,362.25 mi (2,192.33 km) |
| Diamond Bar to Carrollton (Georgia) | 1,871.68 mi (3,012.18 km) |
| Diamond Bar to Carrollton (Texas) | 1,205.12 mi (1,939.45 km) |
