| Diamond Bar to Delaware (Ohio) | 1,948.94 mi (3,136.51 km) |
| Diamond Bar to Delhi (California) | 289.41 mi (465.76 km) |
| Diamond Bar to Delray Beach (Florida) | 2,298.11 mi (3,698.46 km) |
| Diamond Bar to Deltona (Florida) | 2,174.29 mi (3,499.18 km) |
| Diamond Bar to Deming (New Mexico) | 594.24 mi (956.34 km) |
| Diamond Bar to Denison (Texas) | 1,215.97 mi (1,956.91 km) |
| Diamond Bar to Dent (Ohio) | 1,863.13 mi (2,998.41 km) |
| Diamond Bar to Denton (Texas) | 1,188.89 mi (1,913.33 km) |
| Diamond Bar to Dentsville (South Carolina) | 2,098.82 mi (3,377.72 km) |
| Diamond Bar to Denver (Colorado) | 817.35 mi (1,315.40 km) |
| Diamond Bar to Depew (New York) | 2,182.32 mi (3,512.10 km) |
| Diamond Bar to Derby (Connecticut) | 2,470.36 mi (3,975.67 km) |
| Diamond Bar to Derby (Kansas) | 1,175.91 mi (1,892.45 km) |
| Diamond Bar to Des Moines (Iowa) | 1,415.57 mi (2,278.13 km) |
| Diamond Bar to Des Moines (Washington) | 954.43 mi (1,536.00 km) |
