| Middle Island to Salisbury (New York) | 33.59 mi (54.05 km) |
| Middle Island to Salisbury (North Carolina) | 545.10 mi (877.26 km) |
| Middle Island to Salmon Creek (Washington) | 2,481.64 mi (3,993.81 km) |
| Middle Island to Salt Lake City (Utah) | 2,020.90 mi (3,252.33 km) |
| Middle Island to Sammamish (Washington) | 2,431.97 mi (3,913.88 km) |
| Middle Island to San Angelo (Texas) | 1,658.26 mi (2,668.71 km) |
| Middle Island to San Anselmo (California) | 2,620.22 mi (4,216.83 km) |
| Middle Island to San Antonio (Texas) | 1,637.31 mi (2,635.00 km) |
| Middle Island to San Benito (Texas) | 1,740.23 mi (2,800.62 km) |
| Middle Island to San Bernardino (California) | 2,448.07 mi (3,939.79 km) |
| Middle Island to San Bruno (California) | 2,621.81 mi (4,219.40 km) |
| Middle Island to San Buenaventura (California) | 2,545.20 mi (4,096.11 km) |
| Middle Island to San Carlos (California) | 2,616.58 mi (4,210.98 km) |
| Middle Island to San Carlos Park (Florida) | 1,117.19 mi (1,797.95 km) |
| Middle Island to San Clemente (California) | 2,484.53 mi (3,998.47 km) |
