| Ridge to Smyrna (Delaware) | 182.17 mi (293.18 km) |
| Ridge to Smyrna (Georgia) | 801.83 mi (1,290.42 km) |
| Ridge to Smyrna (Tennessee) | 812.25 mi (1,307.19 km) |
| Ridge to Snellville (Georgia) | 780.04 mi (1,255.35 km) |
| Ridge to Snoqualmie (Washington) | 2,425.64 mi (3,903.69 km) |
| Ridge to Snyder (Texas) | 1,642.04 mi (2,642.60 km) |
| Ridge to Socastee (South Carolina) | 601.49 mi (968.01 km) |
| Ridge to Socorro (Texas) | 1,952.56 mi (3,142.34 km) |
| Ridge to Soddy-Daisy (Tennessee) | 773.06 mi (1,244.11 km) |
| Ridge to Solana Beach (California) | 2,482.93 mi (3,995.89 km) |
| Ridge to Soledad (California) | 2,598.77 mi (4,182.32 km) |
| Ridge to Solon (Ohio) | 446.34 mi (718.31 km) |
| Ridge to Somers Point (New Jersey) | 142.75 mi (229.73 km) |
| Ridge to Somerset (Kentucky) | 682.29 mi (1,098.04 km) |
| Ridge to Somerset (New Jersey) | 89.17 mi (143.51 km) |
