| Middle Island to Smyrna (Delaware) | 178.63 mi (287.48 km) |
| Middle Island to Smyrna (Georgia) | 798.25 mi (1,284.65 km) |
| Middle Island to Smyrna (Tennessee) | 808.62 mi (1,301.34 km) |
| Middle Island to Snellville (Georgia) | 776.47 mi (1,249.61 km) |
| Middle Island to Snoqualmie (Washington) | 2,423.36 mi (3,900.03 km) |
| Middle Island to Snyder (Texas) | 1,638.49 mi (2,636.89 km) |
| Middle Island to Socastee (South Carolina) | 598.36 mi (962.97 km) |
| Middle Island to Socorro (Texas) | 1,949.05 mi (3,136.69 km) |
| Middle Island to Soddy-Daisy (Tennessee) | 769.42 mi (1,238.27 km) |
| Middle Island to Solana Beach (California) | 2,479.64 mi (3,990.60 km) |
| Middle Island to Soledad (California) | 2,595.72 mi (4,177.41 km) |
| Middle Island to Solon (Ohio) | 443.21 mi (713.28 km) |
| Middle Island to Somers Point (New Jersey) | 139.49 mi (224.49 km) |
| Middle Island to Somerset (Kentucky) | 678.66 mi (1,092.20 km) |
| Middle Island to Somerset (New Jersey) | 85.56 mi (137.69 km) |
