| Diamond Bar to Ukiah (California) | 464.64 mi (747.77 km) |
| Diamond Bar to Union (Missouri) | 1,520.64 mi (2,447.24 km) |
| Diamond Bar to Union City (California) | 342.64 mi (551.42 km) |
| Diamond Bar to Union City (Georgia) | 1,901.04 mi (3,059.43 km) |
| Diamond Bar to Union City (New Jersey) | 2,423.11 mi (3,899.62 km) |
| Diamond Bar to Union City (Tennessee) | 1,626.60 mi (2,617.76 km) |
| Diamond Bar to Union Hill-Novelty Hill (Washington) | 970.09 mi (1,561.20 km) |
| Diamond Bar to Union Park (Florida) | 2,180.68 mi (3,509.46 km) |
| Diamond Bar to Uniondale (New York) | 2,446.18 mi (3,936.75 km) |
| Diamond Bar to Universal City (Texas) | 1,184.28 mi (1,905.91 km) |
| Diamond Bar to University (Florida) | 2,123.42 mi (3,417.31 km) |
| Diamond Bar to University City (Missouri) | 1,557.23 mi (2,506.12 km) |
| Diamond Bar to University Heights (Ohio) | 2,032.55 mi (3,271.08 km) |
| Diamond Bar to University of California-Santa Barbara (California) | 120.09 mi (193.27 km) |
| Diamond Bar to University Park (Texas) | 1,212.75 mi (1,951.73 km) |
