| Frederick to Jeffersonville (Indiana) | 451.99 mi (727.41 km) |
| Frederick to Jenison (Michigan) | 498.68 mi (802.55 km) |
| Frederick to Jenks (Oklahoma) | 1,039.76 mi (1,673.33 km) |
| Frederick to Jennings (Missouri) | 690.40 mi (1,111.09 km) |
| Frederick to Jensen Beach (Florida) | 857.79 mi (1,380.47 km) |
| Frederick to Jericho (New York) | 224.97 mi (362.05 km) |
| Frederick to Jerome (Idaho) | 1,930.08 mi (3,106.16 km) |
| Frederick to Jersey City (New Jersey) | 197.88 mi (318.46 km) |
| Frederick to Jessup (Maryland) | 39.34 mi (63.31 km) |
| Frederick to Johns Creek (Georgia) | 529.33 mi (851.88 km) |
| Frederick to Johnson City (New York) | 200.73 mi (323.04 km) |
| Frederick to Johnson City (Tennessee) | 344.89 mi (555.05 km) |
| Frederick to Johnston (Iowa) | 868.79 mi (1,398.18 km) |
| Frederick to Johnstown (Colorado) | 1,455.13 mi (2,341.80 km) |
| Frederick to Johnstown (Pennsylvania) | 100.85 mi (162.30 km) |
