| Halfway to Superior (Colorado) | 1,448.82 mi (2,331.65 km) |
| Halfway to Superior (Wisconsin) | 869.41 mi (1,399.17 km) |
| Halfway to Surprise (Arizona) | 1,953.05 mi (3,143.14 km) |
| Halfway to Susanville (California) | 2,245.13 mi (3,613.18 km) |
| Halfway to Sussex (Wisconsin) | 593.39 mi (954.97 km) |
| Halfway to Suwanee (Georgia) | 518.54 mi (834.50 km) |
| Halfway to Swansea (Illinois) | 658.75 mi (1,060.15 km) |
| Halfway to Sweetwater (Florida) | 967.89 mi (1,557.67 km) |
| Halfway to Sweetwater (Texas) | 1,353.09 mi (2,177.59 km) |
| Halfway to Sycamore (Illinois) | 593.40 mi (954.99 km) |
| Halfway to Sylacauga (Alabama) | 648.13 mi (1,043.07 km) |
| Halfway to Sylvania (Ohio) | 343.14 mi (552.22 km) |
| Halfway to Syosset (New York) | 239.93 mi (386.13 km) |
| Halfway to Syracuse (New York) | 251.20 mi (404.26 km) |
| Halfway to Syracuse (Utah) | 1,797.25 mi (2,892.39 km) |
