| Dorchester to Jacksonville (Texas) | 4,661.25 mi (7,501.56 km) |
| Dorchester to Jacksonville Beach (Florida) | 4,168.91 mi (6,709.21 km) |
| Dorchester to James Island (South Carolina) | 3,989.24 mi (6,420.06 km) |
| Dorchester to Jamestown (New York) | 3,539.75 mi (5,696.68 km) |
| Dorchester to Jamestown (North Dakota) | 4,062.51 mi (6,537.98 km) |
| Dorchester to Janesville (Wisconsin) | 3,900.86 mi (6,277.83 km) |
| Dorchester to Jasmine Estates (Florida) | 4,320.58 mi (6,953.30 km) |
| Dorchester to Jasper (Alabama) | 4,243.22 mi (6,828.81 km) |
| Dorchester to Jasper (Indiana) | 4,015.25 mi (6,461.93 km) |
| Dorchester to Jefferson (Georgia) | 4,077.39 mi (6,561.93 km) |
| Dorchester to Jefferson (Louisiana) | 4,553.02 mi (7,327.38 km) |
| Dorchester to Jefferson City (Missouri) | 4,214.73 mi (6,782.96 km) |
| Dorchester to Jefferson Hills (Pennsylvania) | 3,645.60 mi (5,867.03 km) |
| Dorchester to Jefferson Valley-Yorktown (New York) | 3,349.05 mi (5,389.77 km) |
| Dorchester to Jeffersontown (Kentucky) | 3,968.67 mi (6,386.96 km) |
