| Watertown Town to Johnstown (Pennsylvania) | 425.49 mi (684.76 km) |
| Watertown Town to Joliet (Illinois) | 872.76 mi (1,404.57 km) |
| Watertown Town to Jonesboro (Arkansas) | 1,136.02 mi (1,828.24 km) |
| Watertown Town to Joplin (Missouri) | 1,287.69 mi (2,072.33 km) |
| Watertown Town to Joppatowne (Maryland) | 338.46 mi (544.70 km) |
| Watertown Town to Juana Díaz (Puerto Rico) | 1,702.44 mi (2,739.81 km) |
| Watertown Town to Junction City (Kansas) | 1,359.16 mi (2,187.35 km) |
| Watertown Town to Juneau (Alaska) | 2,862.16 mi (4,606.19 km) |
| Watertown Town to Jupiter (Florida) | 1,180.48 mi (1,899.79 km) |
| Watertown Town to Jupiter Farms (Florida) | 1,182.90 mi (1,903.70 km) |
| Watertown Town to Jurupa Valley (California) | 2,546.99 mi (4,098.99 km) |
| Watertown Town to Justice (Illinois) | 854.18 mi (1,374.68 km) |
| Watertown Town to Kahului (Hawaii) | 5,025.18 mi (8,087.25 km) |
| Watertown Town to Kailua (Hawaii) | 5,065.79 mi (8,152.59 km) |
| Watertown Town to Kalamazoo (Michigan) | 735.33 mi (1,183.39 km) |
