| Watertown Town to Ilawa | 3,975.59 mi (6,398.09 km) |
| Watertown Town to Imielin | 4,081.31 mi (6,568.23 km) |
| Watertown Town to Inowroclaw | 3,954.89 mi (6,364.78 km) |
| Watertown Town to Janow Lubelski | 4,180.69 mi (6,728.17 km) |
| Watertown Town to Jarocin | 3,953.97 mi (6,363.31 km) |
| Watertown Town to Jaroslaw | 4,216.29 mi (6,785.46 km) |
| Watertown Town to Jasien | 3,915.22 mi (6,300.93 km) |
| Watertown Town to Jaslo | 4,180.82 mi (6,728.37 km) |
| Watertown Town to Jastrzebie-Zdroj | 4,063.47 mi (6,539.53 km) |
| Watertown Town to Jawor | 3,934.95 mi (6,332.69 km) |
| Watertown Town to Jaworzno | 4,080.84 mi (6,567.48 km) |
| Watertown Town to Jedrzejow | 4,104.68 mi (6,605.85 km) |
| Watertown Town to Jelcz-Laskowice | 3,978.72 mi (6,403.12 km) |
| Watertown Town to Jelenia Gora | 3,921.89 mi (6,311.67 km) |
| Watertown Town to Jozefoslaw | 4,080.51 mi (6,566.95 km) |
