| Encinitas to Joliet (Illinois) | 1,694.18 mi (2,726.52 km) |
| Encinitas to Jonesboro (Arkansas) | 1,522.13 mi (2,449.63 km) |
| Encinitas to Joplin (Missouri) | 1,313.46 mi (2,113.81 km) |
| Encinitas to Joppatowne (Maryland) | 2,301.84 mi (3,704.45 km) |
| Encinitas to Juana Díaz (Puerto Rico) | 3,294.95 mi (5,302.71 km) |
| Encinitas to Junction City (Kansas) | 1,209.60 mi (1,946.66 km) |
| Encinitas to Juneau (Alaska) | 1,922.94 mi (3,094.68 km) |
| Encinitas to Jupiter (Florida) | 2,251.18 mi (3,622.93 km) |
| Encinitas to Jupiter Farms (Florida) | 2,244.99 mi (3,612.96 km) |
| Encinitas to Jurupa Valley (California) | 66.86 mi (107.60 km) |
| Encinitas to Justice (Illinois) | 1,713.17 mi (2,757.07 km) |
| Encinitas to Kahului (Hawaii) | 2,539.27 mi (4,086.56 km) |
| Encinitas to Kailua (Hawaii) | 2,596.08 mi (4,177.99 km) |
| Encinitas to Kalamazoo (Michigan) | 1,833.13 mi (2,950.14 km) |
| Encinitas to Kalispell (Montana) | 1,058.89 mi (1,704.13 km) |
