| River Grove to Smyrna (Delaware) | 666.07 mi (1,071.94 km) |
| River Grove to Smyrna (Georgia) | 585.53 mi (942.31 km) |
| River Grove to Smyrna (Tennessee) | 417.47 mi (671.85 km) |
| River Grove to Snellville (Georgia) | 595.19 mi (957.86 km) |
| River Grove to Snoqualmie (Washington) | 1,698.94 mi (2,734.19 km) |
| River Grove to Snyder (Texas) | 957.71 mi (1,541.29 km) |
| River Grove to Socastee (South Carolina) | 744.94 mi (1,198.86 km) |
| River Grove to Socorro (Texas) | 1,238.41 mi (1,993.03 km) |
| River Grove to Soddy-Daisy (Tennessee) | 482.53 mi (776.56 km) |
| River Grove to Solana Beach (California) | 1,717.00 mi (2,763.25 km) |
| River Grove to Soledad (California) | 1,821.71 mi (2,931.75 km) |
| River Grove to Solon (Ohio) | 332.29 mi (534.76 km) |
| River Grove to Somers Point (New Jersey) | 716.10 mi (1,152.45 km) |
| River Grove to Somerset (Kentucky) | 376.05 mi (605.19 km) |
| River Grove to Somerset (New Jersey) | 699.31 mi (1,125.43 km) |
