| Highland to Smyrna (Delaware) | 2,309.26 mi (3,716.40 km) |
| Highland to Smyrna (Georgia) | 1,862.40 mi (2,997.24 km) |
| Highland to Smyrna (Tennessee) | 1,730.88 mi (2,785.58 km) |
| Highland to Snellville (Georgia) | 1,891.48 mi (3,044.04 km) |
| Highland to Snoqualmie (Washington) | 958.32 mi (1,542.27 km) |
| Highland to Snyder (Texas) | 941.36 mi (1,514.97 km) |
| Highland to Socastee (South Carolina) | 2,175.46 mi (3,501.07 km) |
| Highland to Socorro (Texas) | 655.08 mi (1,054.25 km) |
| Highland to Soddy-Daisy (Tennessee) | 1,811.45 mi (2,915.24 km) |
| Highland to Solana Beach (California) | 77.36 mi (124.50 km) |
| Highland to Soledad (California) | 285.41 mi (459.32 km) |
| Highland to Solon (Ohio) | 2,000.10 mi (3,218.85 km) |
| Highland to Somers Point (New Jersey) | 2,362.52 mi (3,802.10 km) |
| Highland to Somerset (Kentucky) | 1,831.46 mi (2,947.46 km) |
| Highland to Somerset (New Jersey) | 2,362.36 mi (3,801.85 km) |
