| Mason City to Washington (Indiana) | 442.21 mi (711.67 km) |
| Mason City to Washington (Missouri) | 337.49 mi (543.14 km) |
| Mason City to Washington (Pennsylvania) | 698.66 mi (1,124.38 km) |
| Mason City to Washington (Utah) | 1,145.85 mi (1,844.06 km) |
| Mason City to Washington Court House (Ohio) | 564.45 mi (908.40 km) |
| Mason City to Washougal (Washington) | 1,441.36 mi (2,319.65 km) |
| Mason City to Watauga (Texas) | 743.27 mi (1,196.19 km) |
| Mason City to Waterbury (Connecticut) | 1,032.88 mi (1,662.26 km) |
| Mason City to Waterloo (Illinois) | 368.44 mi (592.95 km) |
| Mason City to Waterloo (Iowa) | 62.49 mi (100.56 km) |
| Mason City to Watertown (New York) | 865.97 mi (1,393.64 km) |
| Mason City to Watertown (South Dakota) | 230.98 mi (371.73 km) |
| Mason City to Watertown (Wisconsin) | 225.31 mi (362.59 km) |
| Mason City to Watertown Town (Massachusetts) | 1,115.25 mi (1,794.82 km) |
| Mason City to Waterville (Maine) | 1,172.74 mi (1,887.34 km) |
