| Swansea to Jeffersontown (Kentucky) | 240.34 mi (386.79 km) |
| Swansea to Jeffersonville (Indiana) | 232.23 mi (373.74 km) |
| Swansea to Jenison (Michigan) | 371.35 mi (597.63 km) |
| Swansea to Jenks (Oklahoma) | 373.36 mi (600.87 km) |
| Swansea to Jennings (Missouri) | 19.18 mi (30.87 km) |
| Swansea to Jensen Beach (Florida) | 962.95 mi (1,549.72 km) |
| Swansea to Jericho (New York) | 886.74 mi (1,427.08 km) |
| Swansea to Jerome (Idaho) | 1,313.04 mi (2,113.13 km) |
| Swansea to Jersey City (New Jersey) | 858.86 mi (1,382.20 km) |
| Swansea to Jessup (Maryland) | 711.32 mi (1,144.76 km) |
| Swansea to Johns Creek (Georgia) | 448.30 mi (721.47 km) |
| Swansea to Johnson City (New York) | 777.62 mi (1,251.46 km) |
| Swansea to Johnson City (Tennessee) | 444.08 mi (714.68 km) |
| Swansea to Johnston (Iowa) | 293.32 mi (472.06 km) |
| Swansea to Johnstown (Colorado) | 806.89 mi (1,298.57 km) |
