| Middlesex to Stephenville (Texas) | 1,434.20 mi (2,308.12 km) |
| Middlesex to Sterling (Colorado) | 1,498.48 mi (2,411.57 km) |
| Middlesex to Sterling (Illinois) | 793.54 mi (1,277.08 km) |
| Middlesex to Sterling (Virginia) | 188.46 mi (303.30 km) |
| Middlesex to Sterling Heights (Michigan) | 461.89 mi (743.34 km) |
| Middlesex to Steubenville (Ohio) | 323.56 mi (520.72 km) |
| Middlesex to Stevens Point (Wisconsin) | 811.74 mi (1,306.37 km) |
| Middlesex to Stevenson Ranch (California) | 2,428.98 mi (3,909.06 km) |
| Middlesex to Stillwater (Minnesota) | 976.75 mi (1,571.93 km) |
| Middlesex to Stillwater (Oklahoma) | 1,257.17 mi (2,023.23 km) |
| Middlesex to Stockbridge (Georgia) | 723.72 mi (1,164.71 km) |
| Middlesex to Stockton (California) | 2,480.56 mi (3,992.08 km) |
| Middlesex to Stone Ridge (Virginia) | 198.09 mi (318.79 km) |
| Middlesex to Stonecrest (Georgia) | 712.21 mi (1,146.19 km) |
| Middlesex to Stony Brook (New York) | 75.46 mi (121.44 km) |
