| Watertown Town to Isny im Allgau | 3,796.53 mi (6,109.93 km) |
| Watertown Town to Isselburg | 3,532.84 mi (5,685.56 km) |
| Watertown Town to Issum | 3,538.79 mi (5,695.13 km) |
| Watertown Town to Itzehoe | 3,595.97 mi (5,787.15 km) |
| Watertown Town to Jena | 3,760.00 mi (6,051.14 km) |
| Watertown Town to Jever | 3,543.84 mi (5,703.26 km) |
| Watertown Town to Jork | 3,612.57 mi (5,813.86 km) |
| Watertown Town to Juchen | 3,553.44 mi (5,718.71 km) |
| Watertown Town to Julich | 3,552.44 mi (5,717.11 km) |
| Watertown Town to Juterbog | 3,785.59 mi (6,092.33 km) |
| Watertown Town to Kaarst | 3,554.97 mi (5,721.18 km) |
| Watertown Town to Kaiserslautern | 3,650.48 mi (5,874.88 km) |
| Watertown Town to Kalkar | 3,528.38 mi (5,678.38 km) |
| Watertown Town to Kall | 3,570.15 mi (5,745.60 km) |
| Watertown Town to Kaltenkirchen | 3,614.92 mi (5,817.66 km) |
