| Mason City to Alderwood Manor (Washington) | 1,435.45 mi (2,310.13 km) |
| Mason City to Aldine (Texas) | 922.42 mi (1,484.49 km) |
| Mason City to Alexander City (Alabama) | 808.82 mi (1,301.67 km) |
| Mason City to Alexandria (Louisiana) | 820.17 mi (1,319.94 km) |
| Mason City to Alexandria (Minnesota) | 216.90 mi (349.07 km) |
| Mason City to Alexandria (Virginia) | 890.38 mi (1,432.93 km) |
| Mason City to Algonquin (Illinois) | 257.30 mi (414.08 km) |
| Mason City to Alhambra (California) | 1,477.21 mi (2,377.35 km) |
| Mason City to Alice (Texas) | 1,097.72 mi (1,766.62 km) |
| Mason City to Aliso Viejo (California) | 1,476.73 mi (2,376.57 km) |
| Mason City to Allen (Texas) | 718.74 mi (1,156.70 km) |
| Mason City to Allen Park (Michigan) | 510.58 mi (821.70 km) |
| Mason City to Allendale (Michigan) | 366.01 mi (589.03 km) |
| Mason City to Allentown (Pennsylvania) | 926.94 mi (1,491.76 km) |
| Mason City to Alliance (Ohio) | 638.37 mi (1,027.36 km) |
