| Williamstown to Jeffersontown (Kentucky) | 577.93 mi (930.09 km) |
| Williamstown to Jeffersonville (Indiana) | 582.87 mi (938.03 km) |
| Williamstown to Jenison (Michigan) | 604.89 mi (973.48 km) |
| Williamstown to Jenks (Oklahoma) | 1,170.65 mi (1,883.97 km) |
| Williamstown to Jennings (Missouri) | 820.10 mi (1,319.83 km) |
| Williamstown to Jensen Beach (Florida) | 911.27 mi (1,466.54 km) |
| Williamstown to Jericho (New York) | 107.34 mi (172.74 km) |
| Williamstown to Jerome (Idaho) | 2,047.14 mi (3,294.56 km) |
| Williamstown to Jersey City (New Jersey) | 85.91 mi (138.26 km) |
| Williamstown to Jessup (Maryland) | 102.96 mi (165.70 km) |
| Williamstown to Johns Creek (Georgia) | 641.77 mi (1,032.83 km) |
| Williamstown to Johnson City (New York) | 175.95 mi (283.16 km) |
| Williamstown to Johnson City (Tennessee) | 464.34 mi (747.28 km) |
| Williamstown to Johnston (Iowa) | 989.75 mi (1,592.84 km) |
| Williamstown to Johnstown (Colorado) | 1,578.86 mi (2,540.94 km) |
