| Fort Washington to Joliet (Illinois) | 618.80 mi (995.86 km) |
| Fort Washington to Jonesboro (Arkansas) | 777.30 mi (1,250.94 km) |
| Fort Washington to Joplin (Missouri) | 959.13 mi (1,543.58 km) |
| Fort Washington to Joppatowne (Maryland) | 58.91 mi (94.80 km) |
| Fort Washington to Juana Díaz (Puerto Rico) | 1,562.25 mi (2,514.20 km) |
| Fort Washington to Junction City (Kansas) | 1,065.40 mi (1,714.59 km) |
| Fort Washington to Juneau (Alaska) | 2,834.01 mi (4,560.89 km) |
| Fort Washington to Jupiter (Florida) | 835.79 mi (1,345.07 km) |
| Fort Washington to Jupiter Farms (Florida) | 836.98 mi (1,346.99 km) |
| Fort Washington to Jurupa Valley (California) | 2,256.40 mi (3,631.33 km) |
| Fort Washington to Justice (Illinois) | 607.35 mi (977.44 km) |
| Fort Washington to Kahului (Hawaii) | 4,776.07 mi (7,686.34 km) |
| Fort Washington to Kailua (Hawaii) | 4,823.17 mi (7,762.14 km) |
| Fort Washington to Kalamazoo (Michigan) | 512.57 mi (824.91 km) |
| Fort Washington to Kalispell (Montana) | 1,960.01 mi (3,154.33 km) |
