| Middlesex to Mountain Brook (Alabama) | 832.65 mi (1,340.03 km) |
| Middlesex to Mountain Home (Arkansas) | 1,008.88 mi (1,623.63 km) |
| Middlesex to Mountain Home (Idaho) | 2,106.08 mi (3,389.42 km) |
| Middlesex to Mountain House (California) | 2,497.40 mi (4,019.17 km) |
| Middlesex to Mountain Park (Georgia) | 704.16 mi (1,133.23 km) |
| Middlesex to Mountain Top (Pennsylvania) | 82.95 mi (133.49 km) |
| Middlesex to Mountain View (California) | 2,533.54 mi (4,077.34 km) |
| Middlesex to Mountlake Terrace (Washington) | 2,381.00 mi (3,831.86 km) |
| Middlesex to Mukilteo (Washington) | 2,379.98 mi (3,830.20 km) |
| Middlesex to Muncie (Indiana) | 573.54 mi (923.02 km) |
| Middlesex to Mundelein (Illinois) | 708.85 mi (1,140.79 km) |
| Middlesex to Munhall (Pennsylvania) | 283.98 mi (457.02 km) |
| Middlesex to Munster (Indiana) | 680.09 mi (1,094.50 km) |
| Middlesex to Murfreesboro (Tennessee) | 723.52 mi (1,164.39 km) |
| Middlesex to Murphy (Texas) | 1,325.28 mi (2,132.84 km) |
