| Rockwall to Smyrna (Delaware) | 1,239.86 mi (1,995.36 km) |
| Rockwall to Smyrna (Georgia) | 690.40 mi (1,111.08 km) |
| Rockwall to Smyrna (Tennessee) | 602.45 mi (969.56 km) |
| Rockwall to Snellville (Georgia) | 719.80 mi (1,158.40 km) |
| Rockwall to Snoqualmie (Washington) | 1,665.02 mi (2,679.59 km) |
| Rockwall to Snyder (Texas) | 260.17 mi (418.70 km) |
| Rockwall to Socastee (South Carolina) | 1,006.68 mi (1,620.10 km) |
| Rockwall to Socorro (Texas) | 580.34 mi (933.97 km) |
| Rockwall to Soddy-Daisy (Tennessee) | 664.07 mi (1,068.72 km) |
| Rockwall to Solana Beach (California) | 1,205.08 mi (1,939.39 km) |
| Rockwall to Soledad (California) | 1,431.76 mi (2,304.19 km) |
| Rockwall to Solon (Ohio) | 1,009.83 mi (1,625.17 km) |
| Rockwall to Somers Point (New Jersey) | 1,292.25 mi (2,079.68 km) |
| Rockwall to Somerset (Kentucky) | 727.94 mi (1,171.50 km) |
| Rockwall to Somerset (New Jersey) | 1,318.76 mi (2,122.33 km) |
