| Mill Valley to Smyrna (Delaware) | 2,507.28 mi (4,035.08 km) |
| Mill Valley to Smyrna (Georgia) | 2,132.05 mi (3,431.21 km) |
| Mill Valley to Smyrna (Tennessee) | 1,981.13 mi (3,188.33 km) |
| Mill Valley to Snellville (Georgia) | 2,160.10 mi (3,476.34 km) |
| Mill Valley to Snoqualmie (Washington) | 665.67 mi (1,071.29 km) |
| Mill Valley to Snyder (Texas) | 1,267.95 mi (2,040.57 km) |
| Mill Valley to Socastee (South Carolina) | 2,434.93 mi (3,918.65 km) |
| Mill Valley to Socorro (Texas) | 1,018.64 mi (1,639.35 km) |
| Mill Valley to Soddy-Daisy (Tennessee) | 2,067.49 mi (3,327.31 km) |
| Mill Valley to Solana Beach (California) | 451.23 mi (726.18 km) |
| Mill Valley to Soledad (California) | 120.88 mi (194.53 km) |
| Mill Valley to Solon (Ohio) | 2,179.28 mi (3,507.21 km) |
| Mill Valley to Somers Point (New Jersey) | 2,559.03 mi (4,118.36 km) |
| Mill Valley to Somerset (Kentucky) | 2,065.63 mi (3,324.30 km) |
| Mill Valley to Somerset (New Jersey) | 2,546.35 mi (4,097.95 km) |
