| Diamond Bar to Des Plaines (Illinois) | 1,710.09 mi (2,752.13 km) |
| Diamond Bar to Desert Hot Springs (California) | 73.01 mi (117.50 km) |
| Diamond Bar to DeSoto (Texas) | 1,211.76 mi (1,950.13 km) |
| Diamond Bar to Destin (Florida) | 1,842.36 mi (2,964.99 km) |
| Diamond Bar to Destrehan (Louisiana) | 1,627.63 mi (2,619.41 km) |
| Diamond Bar to Detroit (Michigan) | 1,956.70 mi (3,149.00 km) |
| Diamond Bar to Diamond Springs (California) | 365.23 mi (587.78 km) |
| Diamond Bar to Dickinson (North Dakota) | 1,186.44 mi (1,909.40 km) |
| Diamond Bar to Dickinson (Texas) | 1,370.64 mi (2,205.82 km) |
| Diamond Bar to Dickson (Tennessee) | 1,721.61 mi (2,770.66 km) |
| Diamond Bar to Difficult Run (Virginia) | 2,255.87 mi (3,630.47 km) |
| Diamond Bar to Dinuba (California) | 197.27 mi (317.47 km) |
| Diamond Bar to Discovery Bay (California) | 342.92 mi (551.87 km) |
| Diamond Bar to Dix Hills (New York) | 2,459.24 mi (3,957.77 km) |
| Diamond Bar to Dixon (California) | 379.86 mi (611.33 km) |
