| Mason City to Willow Grove (Pennsylvania) | 954.31 mi (1,535.82 km) |
| Mason City to Willowbrook (California) | 1,488.12 mi (2,394.89 km) |
| Mason City to Willowick (Ohio) | 607.22 mi (977.22 km) |
| Mason City to Wilmette (Illinois) | 287.84 mi (463.24 km) |
| Mason City to Wilmington (Delaware) | 942.38 mi (1,516.61 km) |
| Mason City to Wilmington (North Carolina) | 1,028.60 mi (1,655.37 km) |
| Mason City to Wilmington (Ohio) | 550.17 mi (885.42 km) |
| Mason City to Wilmington Island (Georgia) | 1,018.11 mi (1,638.49 km) |
| Mason City to Wilson (North Carolina) | 960.36 mi (1,545.55 km) |
| Mason City to Wilsonville (Oregon) | 1,463.31 mi (2,354.96 km) |
| Mason City to Wilton Manors (Florida) | 1,385.02 mi (2,228.97 km) |
| Mason City to Wimauma (Florida) | 1,228.87 mi (1,977.67 km) |
| Mason City to Winchester (Kentucky) | 591.03 mi (951.17 km) |
| Mason City to Winchester (Nevada) | 1,258.96 mi (2,026.10 km) |
| Mason City to Winchester (Virginia) | 827.02 mi (1,330.96 km) |
