| Mason City to Monroe (Washington) | 1,422.50 mi (2,289.29 km) |
| Mason City to Monroe (Wisconsin) | 184.22 mi (296.47 km) |
| Mason City to Monroeville (Pennsylvania) | 716.56 mi (1,153.19 km) |
| Mason City to Monrovia (California) | 1,467.29 mi (2,361.38 km) |
| Mason City to Monsey (New York) | 988.04 mi (1,590.10 km) |
| Mason City to Montclair (California) | 1,456.59 mi (2,344.16 km) |
| Mason City to Montclair (Virginia) | 884.13 mi (1,422.87 km) |
| Mason City to Montebello (California) | 1,478.57 mi (2,379.53 km) |
| Mason City to Monterey (California) | 1,578.15 mi (2,539.79 km) |
| Mason City to Monterey Park (California) | 1,478.35 mi (2,379.17 km) |
| Mason City to Montgomery (Alabama) | 836.11 mi (1,345.59 km) |
| Mason City to Montgomery (Illinois) | 265.50 mi (427.28 km) |
| Mason City to Montgomery (Ohio) | 532.91 mi (857.64 km) |
| Mason City to Montgomery Village (Maryland) | 874.86 mi (1,407.95 km) |
| Mason City to Montgomeryville (Pennsylvania) | 945.90 mi (1,522.28 km) |
