| Royal Palm Beach to Jeffersontown (Kentucky) | 853.15 mi (1,373.02 km) |
| Royal Palm Beach to Jeffersonville (Indiana) | 864.40 mi (1,391.12 km) |
| Royal Palm Beach to Jenison (Michigan) | 1,163.01 mi (1,871.69 km) |
| Royal Palm Beach to Jenks (Oklahoma) | 1,127.17 mi (1,814.00 km) |
| Royal Palm Beach to Jennings (Missouri) | 1,013.55 mi (1,631.15 km) |
| Royal Palm Beach to Jensen Beach (Florida) | 37.32 mi (60.06 km) |
| Royal Palm Beach to Jericho (New York) | 1,045.23 mi (1,682.14 km) |
| Royal Palm Beach to Jerome (Idaho) | 2,218.00 mi (3,569.52 km) |
| Royal Palm Beach to Jersey City (New Jersey) | 1,030.19 mi (1,657.94 km) |
| Royal Palm Beach to Jessup (Maryland) | 882.59 mi (1,420.40 km) |
| Royal Palm Beach to Johns Creek (Georgia) | 559.06 mi (899.73 km) |
| Royal Palm Beach to Johnson City (New York) | 1,092.31 mi (1,757.90 km) |
| Royal Palm Beach to Johnson City (Tennessee) | 677.78 mi (1,090.79 km) |
| Royal Palm Beach to Johnston (Iowa) | 1,287.80 mi (2,072.51 km) |
| Royal Palm Beach to Johnstown (Colorado) | 1,698.49 mi (2,733.46 km) |
