| Diamond Bar to Portage (Michigan) | 1,828.91 mi (2,943.35 km) |
| Diamond Bar to Portage (Wisconsin) | 1,653.10 mi (2,660.40 km) |
| Diamond Bar to Portales (New Mexico) | 826.80 mi (1,330.61 km) |
| Diamond Bar to Porterville (California) | 158.44 mi (254.99 km) |
| Diamond Bar to Portland (Maine) | 2,606.86 mi (4,195.34 km) |
| Diamond Bar to Portland (Oregon) | 837.09 mi (1,347.16 km) |
| Diamond Bar to Portland (Tennessee) | 1,765.92 mi (2,841.98 km) |
| Diamond Bar to Portland (Texas) | 1,282.51 mi (2,064.01 km) |
| Diamond Bar to Portsmouth (New Hampshire) | 2,582.63 mi (4,156.35 km) |
| Diamond Bar to Portsmouth (Ohio) | 1,955.44 mi (3,146.97 km) |
| Diamond Bar to Portsmouth (Virginia) | 2,324.52 mi (3,740.95 km) |
| Diamond Bar to Post Falls (Idaho) | 949.20 mi (1,527.58 km) |
| Diamond Bar to Potomac (Maryland) | 2,263.50 mi (3,642.75 km) |
| Diamond Bar to Potomac Park (California) | 114.66 mi (184.53 km) |
| Diamond Bar to Pottstown (Pennsylvania) | 2,340.51 mi (3,766.69 km) |
