| Portage to Oak Grove (South Carolina) | 617.11 mi (993.14 km) |
| Portage to Oak Harbor (Washington) | 1,831.43 mi (2,947.40 km) |
| Portage to Oak Hills (Oregon) | 1,852.89 mi (2,981.94 km) |
| Portage to Oak Lawn (Illinois) | 116.06 mi (186.78 km) |
| Portage to Oak Park (California) | 1,871.35 mi (3,011.64 km) |
| Portage to Oak Park (Illinois) | 114.90 mi (184.91 km) |
| Portage to Oak Park (Michigan) | 124.35 mi (200.13 km) |
| Portage to Oak Ridge (Florida) | 976.86 mi (1,572.10 km) |
| Portage to Oak Ridge (New Jersey) | 578.26 mi (930.62 km) |
| Portage to Oak Ridge (Tennessee) | 436.43 mi (702.37 km) |
| Portage to Oakdale (California) | 1,877.92 mi (3,022.22 km) |
| Portage to Oakdale (Minnesota) | 415.99 mi (669.47 km) |
| Portage to Oakland (California) | 1,947.24 mi (3,133.78 km) |
| Portage to Oakland (New Jersey) | 591.36 mi (951.70 km) |
| Portage to Oakland Park (Florida) | 1,149.15 mi (1,849.37 km) |
