| Placentia to Jeffersontown (Kentucky) | 1,818.85 mi (2,927.16 km) |
| Placentia to Jeffersonville (Indiana) | 1,811.61 mi (2,915.51 km) |
| Placentia to Jenison (Michigan) | 1,829.88 mi (2,944.91 km) |
| Placentia to Jenks (Oklahoma) | 1,245.33 mi (2,004.17 km) |
| Placentia to Jennings (Missouri) | 1,566.02 mi (2,520.26 km) |
| Placentia to Jensen Beach (Florida) | 2,271.24 mi (3,655.21 km) |
| Placentia to Jericho (New York) | 2,454.08 mi (3,949.46 km) |
| Placentia to Jerome (Idaho) | 636.73 mi (1,024.71 km) |
| Placentia to Jersey City (New Jersey) | 2,426.81 mi (3,905.58 km) |
| Placentia to Jessup (Maryland) | 2,290.20 mi (3,685.73 km) |
| Placentia to Johns Creek (Georgia) | 1,919.81 mi (3,089.63 km) |
| Placentia to Johnson City (New York) | 2,326.14 mi (3,743.55 km) |
| Placentia to Johnson City (Tennessee) | 2,001.07 mi (3,220.40 km) |
| Placentia to Johnston (Iowa) | 1,417.86 mi (2,281.82 km) |
| Placentia to Johnstown (Colorado) | 838.61 mi (1,349.61 km) |
