| Middle River to Mitchell (South Dakota) | 1,154.20 mi (1,857.50 km) |
| Middle River to Mitchellville (Maryland) | 35.06 mi (56.42 km) |
| Middle River to Moberly (Missouri) | 853.97 mi (1,374.33 km) |
| Middle River to Mobile (Alabama) | 890.84 mi (1,433.68 km) |
| Middle River to Modesto (California) | 2,389.03 mi (3,844.77 km) |
| Middle River to Mokena (Illinois) | 620.45 mi (998.52 km) |
| Middle River to Moline (Illinois) | 753.71 mi (1,212.98 km) |
| Middle River to Moncks Corner (South Carolina) | 470.71 mi (757.54 km) |
| Middle River to Monfort Heights (Ohio) | 437.70 mi (704.41 km) |
| Middle River to Monmouth (Oregon) | 2,395.69 mi (3,855.50 km) |
| Middle River to Monroe (Georgia) | 556.79 mi (896.07 km) |
| Middle River to Monroe (Louisiana) | 992.57 mi (1,597.39 km) |
| Middle River to Monroe (Michigan) | 405.73 mi (652.97 km) |
| Middle River to Monroe (North Carolina) | 376.21 mi (605.46 km) |
| Middle River to Monroe (Ohio) | 423.95 mi (682.28 km) |
