| Apex to Smyrna (Delaware) | 304.71 mi (490.38 km) |
| Apex to Smyrna (Georgia) | 344.93 mi (555.11 km) |
| Apex to Smyrna (Tennessee) | 428.79 mi (690.07 km) |
| Apex to Snellville (Georgia) | 318.32 mi (512.29 km) |
| Apex to Snoqualmie (Washington) | 2,329.54 mi (3,749.03 km) |
| Apex to Snyder (Texas) | 1,273.34 mi (2,049.24 km) |
| Apex to Socastee (South Carolina) | 140.92 mi (226.79 km) |
| Apex to Socorro (Texas) | 1,594.28 mi (2,565.74 km) |
| Apex to Soddy-Daisy (Tennessee) | 355.80 mi (572.60 km) |
| Apex to Solana Beach (California) | 2,183.52 mi (3,514.03 km) |
| Apex to Soledad (California) | 2,352.37 mi (3,785.78 km) |
| Apex to Solon (Ohio) | 415.04 mi (667.94 km) |
| Apex to Somers Point (New Jersey) | 340.98 mi (548.75 km) |
| Apex to Somerset (Kentucky) | 332.50 mi (535.10 km) |
| Apex to Somerset (New Jersey) | 407.06 mi (655.10 km) |
