| Portage to Stephenville (Texas) | 977.23 mi (1,572.70 km) |
| Portage to Sterling (Colorado) | 916.97 mi (1,475.71 km) |
| Portage to Sterling (Illinois) | 212.56 mi (342.09 km) |
| Portage to Sterling (Virginia) | 482.52 mi (776.54 km) |
| Portage to Sterling Heights (Michigan) | 133.26 mi (214.46 km) |
| Portage to Steubenville (Ohio) | 285.98 mi (460.24 km) |
| Portage to Stevens Point (Wisconsin) | 255.60 mi (411.35 km) |
| Portage to Stevenson Ranch (California) | 1,855.86 mi (2,986.72 km) |
| Portage to Stillwater (Minnesota) | 412.21 mi (663.39 km) |
| Portage to Stillwater (Oklahoma) | 743.41 mi (1,196.41 km) |
| Portage to Stockbridge (Georgia) | 603.91 mi (971.90 km) |
| Portage to Stockton (California) | 1,896.47 mi (3,052.07 km) |
| Portage to Stone Ridge (Virginia) | 478.17 mi (769.55 km) |
| Portage to Stonecrest (Georgia) | 593.66 mi (955.41 km) |
| Portage to Stony Brook (New York) | 649.97 mi (1,046.02 km) |
