| Morris to Mattoon (Illinois) | 131.15 mi (211.07 km) |
| Morris to Mauldin (South Carolina) | 564.06 mi (907.76 km) |
| Morris to Maumee (Ohio) | 247.11 mi (397.69 km) |
| Morris to Maumelle (Arkansas) | 499.52 mi (803.91 km) |
| Morris to Mayagüez (Puerto Rico) | 2,035.83 mi (3,276.34 km) |
| Morris to Mayfield Heights (Ohio) | 361.38 mi (581.59 km) |
| Morris to Mays Chapel (Maryland) | 633.52 mi (1,019.56 km) |
| Morris to Maywood (California) | 1,695.69 mi (2,728.95 km) |
| Morris to Maywood (Illinois) | 46.19 mi (74.34 km) |
| Morris to McAlester (Oklahoma) | 597.64 mi (961.81 km) |
| Morris to McAllen (Texas) | 1,186.90 mi (1,910.13 km) |
| Morris to McCalla (Alabama) | 563.02 mi (906.09 km) |
| Morris to McComb (Mississippi) | 709.07 mi (1,141.13 km) |
| Morris to McDonough (Georgia) | 596.26 mi (959.58 km) |
| Morris to McFarland (California) | 1,701.65 mi (2,738.55 km) |
