| Middle River to Somersworth (New Hampshire) | 394.37 mi (634.68 km) |
| Middle River to Somerton (Arizona) | 2,173.37 mi (3,497.70 km) |
| Middle River to Somerville (Massachusetts) | 348.75 mi (561.26 km) |
| Middle River to Somerville (New Jersey) | 128.16 mi (206.26 km) |
| Middle River to Sonoma (California) | 2,452.05 mi (3,946.20 km) |
| Middle River to Soquel (California) | 2,451.88 mi (3,945.92 km) |
| Middle River to South Bend (Indiana) | 541.31 mi (871.15 km) |
| Middle River to South Bradenton (Florida) | 893.91 mi (1,438.61 km) |
| Middle River to South Burlington (Vermont) | 390.10 mi (627.80 km) |
| Middle River to South Charleston (West Virginia) | 292.92 mi (471.41 km) |
| Middle River to South Daytona (Florida) | 750.00 mi (1,207.01 km) |
| Middle River to South El Monte (California) | 2,314.10 mi (3,724.19 km) |
| Middle River to South Elgin (Illinois) | 648.70 mi (1,043.98 km) |
| Middle River to South Euclid (Ohio) | 307.51 mi (494.89 km) |
| Middle River to South Farmingdale (New York) | 183.92 mi (295.99 km) |
