| Mason City to Mill Creek East (Washington) | 1,431.82 mi (2,304.29 km) |
| Mason City to Mill Valley (California) | 1,574.23 mi (2,533.47 km) |
| Mason City to Millbrae (California) | 1,575.52 mi (2,535.56 km) |
| Mason City to Millbrook (Alabama) | 823.80 mi (1,325.79 km) |
| Mason City to Millcreek (Utah) | 970.62 mi (1,562.06 km) |
| Mason City to Milledgeville (Georgia) | 879.69 mi (1,415.72 km) |
| Mason City to Miller Place (New York) | 1,045.75 mi (1,682.97 km) |
| Mason City to Millington (Tennessee) | 567.90 mi (913.95 km) |
| Mason City to Millville (New Jersey) | 975.16 mi (1,569.36 km) |
| Mason City to Milpitas (California) | 1,554.46 mi (2,501.66 km) |
| Mason City to Milton (Georgia) | 785.00 mi (1,263.33 km) |
| Mason City to Milwaukee (Wisconsin) | 263.95 mi (424.79 km) |
| Mason City to Milwaukie (Oregon) | 1,455.40 mi (2,342.24 km) |
| Mason City to Minden (Louisiana) | 727.56 mi (1,170.90 km) |
| Mason City to Mineola (New York) | 1,016.36 mi (1,635.68 km) |
