| Mason City to Madison (Mississippi) | 756.21 mi (1,217.00 km) |
| Mason City to Madison (New Jersey) | 977.01 mi (1,572.34 km) |
| Mason City to Madison (Wisconsin) | 192.04 mi (309.05 km) |
| Mason City to Madison Heights (Michigan) | 513.21 mi (825.93 km) |
| Mason City to Madison Heights (Virginia) | 839.11 mi (1,350.42 km) |
| Mason City to Madisonville (Kentucky) | 501.00 mi (806.28 km) |
| Mason City to Magalia (California) | 1,480.93 mi (2,383.33 km) |
| Mason City to Magna (Utah) | 985.84 mi (1,586.56 km) |
| Mason City to Magnolia (Arkansas) | 682.04 mi (1,097.63 km) |
| Mason City to Maili (Hawaii) | 3,974.02 mi (6,395.57 km) |
| Mason City to Maitland (Florida) | 1,199.22 mi (1,929.96 km) |
| Mason City to Makakilo (Hawaii) | 3,971.87 mi (6,392.11 km) |
| Mason City to Malden (Massachusetts) | 1,120.53 mi (1,803.31 km) |
| Mason City to Malibu (California) | 1,510.31 mi (2,430.61 km) |
| Mason City to Maltby (Washington) | 1,427.87 mi (2,297.93 km) |
