| Greenock to Jacksonville (Texas) | 4,438.97 mi (7,143.84 km) |
| Greenock to Jacksonville Beach (Florida) | 4,009.42 mi (6,452.54 km) |
| Greenock to James Island (South Carolina) | 3,824.32 mi (6,154.65 km) |
| Greenock to Jamestown (New York) | 3,329.51 mi (5,358.33 km) |
| Greenock to Jamestown (North Dakota) | 3,774.69 mi (6,074.78 km) |
| Greenock to Janesville (Wisconsin) | 3,656.17 mi (5,884.03 km) |
| Greenock to Jasmine Estates (Florida) | 4,164.55 mi (6,702.20 km) |
| Greenock to Jasper (Alabama) | 4,043.46 mi (6,507.32 km) |
| Greenock to Jasper (Indiana) | 3,796.53 mi (6,109.92 km) |
| Greenock to Jefferson (Georgia) | 3,890.71 mi (6,261.49 km) |
| Greenock to Jefferson (Louisiana) | 4,358.30 mi (7,014.01 km) |
| Greenock to Jefferson City (Missouri) | 3,977.44 mi (6,401.07 km) |
| Greenock to Jefferson Hills (Pennsylvania) | 3,442.48 mi (5,540.14 km) |
| Greenock to Jefferson Valley-Yorktown (New York) | 3,162.63 mi (5,089.77 km) |
| Greenock to Jeffersontown (Kentucky) | 3,755.65 mi (6,044.14 km) |
