| Walnut Park to McHenry (Illinois) | 1,715.22 mi (2,760.38 km) |
| Walnut Park to McKeesport (Pennsylvania) | 2,141.36 mi (3,446.18 km) |
| Walnut Park to McKinleyville (California) | 579.37 mi (932.40 km) |
| Walnut Park to McKinney (Texas) | 1,239.54 mi (1,994.85 km) |
| Walnut Park to McLean (Virginia) | 2,286.36 mi (3,679.54 km) |
| Walnut Park to McMinnville (Oregon) | 820.21 mi (1,320.00 km) |
| Walnut Park to McMinnville (Tennessee) | 1,835.44 mi (2,953.86 km) |
| Walnut Park to McNair (Virginia) | 2,274.68 mi (3,660.74 km) |
| Walnut Park to McPherson (Kansas) | 1,183.73 mi (1,905.02 km) |
| Walnut Park to Mead Valley (California) | 54.53 mi (87.75 km) |
| Walnut Park to Meadow Woods (Florida) | 2,202.06 mi (3,543.88 km) |
| Walnut Park to Meadowbrook (Virginia) | 2,281.12 mi (3,671.11 km) |
| Walnut Park to Meadville (Pennsylvania) | 2,126.57 mi (3,422.38 km) |
| Walnut Park to Mebane (North Carolina) | 2,193.85 mi (3,530.67 km) |
| Walnut Park to Mechanicsville (Virginia) | 2,286.03 mi (3,679.02 km) |
