| Diamond Bar to Hermiston (Oregon) | 821.27 mi (1,321.70 km) |
| Diamond Bar to Hermitage (Pennsylvania) | 2,088.54 mi (3,361.17 km) |
| Diamond Bar to Hermosa Beach (California) | 34.52 mi (55.55 km) |
| Diamond Bar to Hernando (Mississippi) | 1,581.78 mi (2,545.62 km) |
| Diamond Bar to Herndon (Virginia) | 2,253.41 mi (3,626.51 km) |
| Diamond Bar to Herriman (Utah) | 550.03 mi (885.18 km) |
| Diamond Bar to Herrin (Illinois) | 1,625.76 mi (2,616.41 km) |
| Diamond Bar to Hershey (Pennsylvania) | 2,287.68 mi (3,681.67 km) |
| Diamond Bar to Hesperia (California) | 39.73 mi (63.94 km) |
| Diamond Bar to Hewitt (Texas) | 1,209.31 mi (1,946.20 km) |
| Diamond Bar to Hialeah (Florida) | 2,301.53 mi (3,703.95 km) |
| Diamond Bar to Hialeah Gardens (Florida) | 2,298.04 mi (3,698.34 km) |
| Diamond Bar to Hibbing (Minnesota) | 1,586.67 mi (2,553.49 km) |
| Diamond Bar to Hickory (North Carolina) | 2,060.34 mi (3,315.79 km) |
| Diamond Bar to Hickory Hills (Illinois) | 1,710.57 mi (2,752.89 km) |
