| Union to Juprelle | 4,481.35 mi (7,212.03 km) |
| Union to Jurbise | 4,427.16 mi (7,124.83 km) |
| Union to Kalmthout | 4,418.12 mi (7,110.28 km) |
| Union to Kampenhout | 4,436.46 mi (7,139.79 km) |
| Union to Kapelle-op-den-Bos | 4,426.97 mi (7,124.51 km) |
| Union to Kapellen | 4,419.16 mi (7,111.95 km) |
| Union to Kasterlee | 4,440.80 mi (7,146.78 km) |
| Union to Keerbergen | 4,437.39 mi (7,141.29 km) |
| Union to Kinrooi | 4,473.99 mi (7,200.18 km) |
| Union to Knokke-Heist | 4,375.21 mi (7,041.22 km) |
| Union to Koekelare | 4,372.01 mi (7,036.07 km) |
| Union to Koekelberg | 4,430.87 mi (7,130.80 km) |
| Union to Koksijde | 4,359.15 mi (7,015.37 km) |
| Union to Kontich | 4,426.09 mi (7,123.10 km) |
| Union to Kortemark | 4,376.52 mi (7,043.34 km) |
