| Tomball to Smithville (Missouri) | 645.06 mi (1,038.13 km) |
| Tomball to Smyrna (Delaware) | 1,298.14 mi (2,089.16 km) |
| Tomball to Smyrna (Georgia) | 700.35 mi (1,127.10 km) |
| Tomball to Smyrna (Tennessee) | 664.38 mi (1,069.22 km) |
| Tomball to Snellville (Georgia) | 728.15 mi (1,171.84 km) |
| Tomball to Snoqualmie (Washington) | 1,839.75 mi (2,960.79 km) |
| Tomball to Snyder (Texas) | 360.65 mi (580.42 km) |
| Tomball to Socastee (South Carolina) | 1,004.30 mi (1,616.26 km) |
| Tomball to Socorro (Texas) | 639.74 mi (1,029.56 km) |
| Tomball to Soddy-Daisy (Tennessee) | 703.84 mi (1,132.73 km) |
| Tomball to Solana Beach (California) | 1,287.42 mi (2,071.90 km) |
| Tomball to Soledad (California) | 1,544.05 mi (2,484.92 km) |
| Tomball to Solon (Ohio) | 1,111.14 mi (1,788.21 km) |
| Tomball to Somers Point (New Jersey) | 1,348.24 mi (2,169.79 km) |
| Tomball to Somerset (Kentucky) | 795.65 mi (1,280.48 km) |
