| River Ridge to Johnstown (Pennsylvania) | 957.86 mi (1,541.53 km) |
| River Ridge to Joliet (Illinois) | 807.01 mi (1,298.75 km) |
| River Ridge to Jonesboro (Arkansas) | 405.89 mi (653.22 km) |
| River Ridge to Joplin (Missouri) | 549.91 mi (885.00 km) |
| River Ridge to Joppatowne (Maryland) | 1,021.51 mi (1,643.96 km) |
| River Ridge to Juana Díaz (Puerto Rico) | 1,702.65 mi (2,740.16 km) |
| River Ridge to Junction City (Kansas) | 731.02 mi (1,176.46 km) |
| River Ridge to Juneau (Alaska) | 2,849.76 mi (4,586.24 km) |
| River Ridge to Jupiter (Florida) | 648.69 mi (1,043.97 km) |
| River Ridge to Jupiter Farms (Florida) | 642.55 mi (1,034.08 km) |
| River Ridge to Jurupa Valley (California) | 1,616.36 mi (2,601.28 km) |
| River Ridge to Justice (Illinois) | 825.41 mi (1,328.37 km) |
| River Ridge to Kahului (Hawaii) | 4,126.92 mi (6,641.63 km) |
| River Ridge to Kailua (Hawaii) | 4,188.41 mi (6,740.60 km) |
| River Ridge to Kalamazoo (Michigan) | 888.95 mi (1,430.63 km) |
