| Mason City to Juprelle | 4,329.63 mi (6,967.87 km) |
| Mason City to Jurbise | 4,279.72 mi (6,887.54 km) |
| Mason City to Kalmthout | 4,265.21 mi (6,864.20 km) |
| Mason City to Kampenhout | 4,285.65 mi (6,897.08 km) |
| Mason City to Kapelle-op-den-Bos | 4,276.14 mi (6,881.78 km) |
| Mason City to Kapellen | 4,266.66 mi (6,866.52 km) |
| Mason City to Kasterlee | 4,287.59 mi (6,900.21 km) |
| Mason City to Keerbergen | 4,286.10 mi (6,897.80 km) |
| Mason City to Kinrooi | 4,319.68 mi (6,951.86 km) |
| Mason City to Knokke-Heist | 4,224.89 mi (6,799.31 km) |
| Mason City to Koekelare | 4,223.63 mi (6,797.27 km) |
| Mason City to Koekelberg | 4,280.89 mi (6,889.42 km) |
| Mason City to Koksijde | 4,211.38 mi (6,777.56 km) |
| Mason City to Kontich | 4,274.50 mi (6,879.14 km) |
| Mason City to Kortemark | 4,228.33 mi (6,804.84 km) |
