| Middlesex to Sugar Hill (Georgia) | 688.51 mi (1,108.06 km) |
| Middlesex to Sugar Land (Texas) | 1,409.71 mi (2,268.71 km) |
| Middlesex to Sugarland Run (Virginia) | 186.17 mi (299.61 km) |
| Middlesex to Sugarmill Woods (Florida) | 935.19 mi (1,505.04 km) |
| Middlesex to Suisun City (California) | 2,510.30 mi (4,039.94 km) |
| Middlesex to Suitland (Maryland) | 175.41 mi (282.29 km) |
| Middlesex to Sulphur (Louisiana) | 1,275.73 mi (2,053.09 km) |
| Middlesex to Sulphur Springs (Texas) | 1,270.85 mi (2,045.24 km) |
| Middlesex to Summerfield (Maryland) | 170.66 mi (274.65 km) |
| Middlesex to Summerfield (North Carolina) | 420.48 mi (676.70 km) |
| Middlesex to Summerlin South (Nevada) | 2,213.77 mi (3,562.72 km) |
| Middlesex to Summerville (South Carolina) | 610.00 mi (981.69 km) |
| Middlesex to Summit (Illinois) | 696.67 mi (1,121.18 km) |
| Middlesex to Summit (New Jersey) | 12.08 mi (19.45 km) |
| Middlesex to Sumner (Washington) | 2,381.98 mi (3,833.43 km) |
