| Diamond Bar to University Place (Washington) | 945.74 mi (1,522.02 km) |
| Diamond Bar to Upland (California) | 12.11 mi (19.48 km) |
| Diamond Bar to Upper Arlington (Ohio) | 1,948.68 mi (3,136.10 km) |
| Diamond Bar to Upper Grand Lagoon (Florida) | 1,888.51 mi (3,039.27 km) |
| Diamond Bar to Upper Montclair (New Jersey) | 2,414.03 mi (3,885.01 km) |
| Diamond Bar to Urbana (Illinois) | 1,678.36 mi (2,701.06 km) |
| Diamond Bar to Urbana (Maryland) | 2,254.16 mi (3,627.72 km) |
| Diamond Bar to Urbana (Ohio) | 1,912.69 mi (3,078.18 km) |
| Diamond Bar to Urbandale (Iowa) | 1,408.12 mi (2,266.15 km) |
| Diamond Bar to Utica (New York) | 2,358.39 mi (3,795.46 km) |
| Diamond Bar to Uvalde (Texas) | 1,109.91 mi (1,786.23 km) |
| Diamond Bar to Vacaville (California) | 379.81 mi (611.24 km) |
| Diamond Bar to Vadnais Heights (Minnesota) | 1,514.84 mi (2,437.90 km) |
| Diamond Bar to Vail (Arizona) | 434.58 mi (699.39 km) |
| Diamond Bar to Valdosta (Georgia) | 2,016.48 mi (3,245.22 km) |
