| Diamond Bar to Dixon (Illinois) | 1,627.90 mi (2,619.85 km) |
| Diamond Bar to Dobbs Ferry (New York) | 2,430.66 mi (3,911.77 km) |
| Diamond Bar to Doctor Phillips (Florida) | 2,168.73 mi (3,490.23 km) |
| Diamond Bar to Dodge City (Kansas) | 1,027.93 mi (1,654.29 km) |
| Diamond Bar to Dolton (Illinois) | 1,721.38 mi (2,770.30 km) |
| Diamond Bar to Donna (Texas) | 1,297.09 mi (2,087.46 km) |
| Diamond Bar to Dorado (Puerto Rico) | 3,332.24 mi (5,362.72 km) |
| Diamond Bar to Doral (Florida) | 2,300.04 mi (3,701.55 km) |
| Diamond Bar to Doraville (Georgia) | 1,913.80 mi (3,079.96 km) |
| Diamond Bar to Dothan (Alabama) | 1,887.94 mi (3,038.34 km) |
| Diamond Bar to Douglas (Arizona) | 514.51 mi (828.03 km) |
| Diamond Bar to Douglas (Georgia) | 2,029.06 mi (3,265.46 km) |
| Diamond Bar to Douglasville (Georgia) | 1,891.23 mi (3,043.64 km) |
| Diamond Bar to Dover (Delaware) | 2,352.23 mi (3,785.55 km) |
| Diamond Bar to Dover (New Hampshire) | 2,577.18 mi (4,147.57 km) |
