| Walnut Park to Mattoon (Illinois) | 1,688.61 mi (2,717.55 km) |
| Walnut Park to Mauldin (South Carolina) | 2,038.10 mi (3,280.00 km) |
| Walnut Park to Maumee (Ohio) | 1,944.87 mi (3,129.97 km) |
| Walnut Park to Maumelle (Arkansas) | 1,469.13 mi (2,364.34 km) |
| Walnut Park to Mayagüez (Puerto Rico) | 3,314.79 mi (5,334.63 km) |
| Walnut Park to Mayfield Heights (Ohio) | 2,058.75 mi (3,313.23 km) |
| Walnut Park to Mays Chapel (Maryland) | 2,312.91 mi (3,722.27 km) |
| Walnut Park to Maywood (California) | 2.42 mi (3.89 km) |
| Walnut Park to Maywood (Illinois) | 1,732.96 mi (2,788.92 km) |
| Walnut Park to McAlester (Oklahoma) | 1,278.11 mi (2,056.91 km) |
| Walnut Park to McAllen (Texas) | 1,305.38 mi (2,100.81 km) |
| Walnut Park to McCalla (Alabama) | 1,787.97 mi (2,877.46 km) |
| Walnut Park to McComb (Mississippi) | 1,621.14 mi (2,608.98 km) |
| Walnut Park to McDonough (Georgia) | 1,949.65 mi (3,137.67 km) |
| Walnut Park to McFarland (California) | 131.53 mi (211.67 km) |
