| Portage to Somersworth (New Hampshire) | 748.93 mi (1,205.28 km) |
| Portage to Somerton (Arizona) | 1,719.20 mi (2,766.78 km) |
| Portage to Somerville (Massachusetts) | 739.72 mi (1,190.47 km) |
| Portage to Somerville (New Jersey) | 579.87 mi (933.22 km) |
| Portage to Sonoma (California) | 1,947.72 mi (3,134.56 km) |
| Portage to Soquel (California) | 1,953.44 mi (3,143.75 km) |
| Portage to South Bend (Indiana) | 50.25 mi (80.87 km) |
| Portage to South Bradenton (Florida) | 1,032.35 mi (1,661.41 km) |
| Portage to South Burlington (Vermont) | 640.37 mi (1,030.57 km) |
| Portage to South Charleston (West Virginia) | 335.72 mi (540.29 km) |
| Portage to South Daytona (Florida) | 936.23 mi (1,506.71 km) |
| Portage to South El Monte (California) | 1,839.11 mi (2,959.76 km) |
| Portage to South Elgin (Illinois) | 140.34 mi (225.86 km) |
| Portage to South Euclid (Ohio) | 214.36 mi (344.98 km) |
| Portage to South Farmingdale (New York) | 636.51 mi (1,024.36 km) |
