| Mason City to Maricopa (Arizona) | 1,233.54 mi (1,985.19 km) |
| Mason City to Marietta (Georgia) | 788.02 mi (1,268.19 km) |
| Mason City to Marietta (Ohio) | 661.49 mi (1,064.57 km) |
| Mason City to Marina (California) | 1,570.92 mi (2,528.15 km) |
| Mason City to Marinette (Wisconsin) | 306.77 mi (493.70 km) |
| Mason City to Marion (Arkansas) | 571.79 mi (920.21 km) |
| Mason City to Marion (Illinois) | 435.82 mi (701.38 km) |
| Mason City to Marion (Indiana) | 427.35 mi (687.76 km) |
| Mason City to Marion (Iowa) | 112.06 mi (180.35 km) |
| Mason City to Marion (Ohio) | 547.18 mi (880.60 km) |
| Mason City to Marion Oaks (Florida) | 1,152.29 mi (1,854.43 km) |
| Mason City to Markham (Illinois) | 300.81 mi (484.10 km) |
| Mason City to Marlborough (Massachusetts) | 1,096.94 mi (1,765.36 km) |
| Mason City to Marlton (New Jersey) | 969.22 mi (1,559.80 km) |
| Mason City to Marquette (Michigan) | 367.96 mi (592.18 km) |
