| Valley Center to Portage (Indiana) | 1,725.85 mi (2,777.48 km) |
| Valley Center to Portage (Michigan) | 1,813.55 mi (2,918.62 km) |
| Valley Center to Portage (Wisconsin) | 1,643.13 mi (2,644.36 km) |
| Valley Center to Portales (New Mexico) | 787.23 mi (1,266.93 km) |
| Valley Center to Porterville (California) | 226.76 mi (364.93 km) |
| Valley Center to Portland (Maine) | 2,593.13 mi (4,173.24 km) |
| Valley Center to Portland (Oregon) | 901.20 mi (1,450.35 km) |
| Valley Center to Portland (Tennessee) | 1,735.79 mi (2,793.49 km) |
| Valley Center to Portland (Texas) | 1,225.76 mi (1,972.67 km) |
| Valley Center to Portsmouth (New Hampshire) | 2,567.67 mi (4,132.26 km) |
| Valley Center to Portsmouth (Ohio) | 1,930.89 mi (3,107.47 km) |
| Valley Center to Portsmouth (Virginia) | 2,296.48 mi (3,695.83 km) |
| Valley Center to Post Falls (Idaho) | 1,001.05 mi (1,611.04 km) |
| Valley Center to Potomac (Maryland) | 2,239.85 mi (3,604.69 km) |
| Valley Center to Potomac Park (California) | 184.51 mi (296.95 km) |
