| Iselin to Jacksonville (Texas) | 1,304.93 mi (2,100.08 km) |
| Iselin to Jacksonville Beach (Florida) | 814.68 mi (1,311.11 km) |
| Iselin to James Island (South Carolina) | 624.26 mi (1,004.65 km) |
| Iselin to Jamestown (New York) | 276.14 mi (444.41 km) |
| Iselin to Jamestown (North Dakota) | 1,286.89 mi (2,071.06 km) |
| Iselin to Janesville (Wisconsin) | 771.90 mi (1,242.26 km) |
| Iselin to Jasmine Estates (Florida) | 972.10 mi (1,564.45 km) |
| Iselin to Jasper (Alabama) | 849.25 mi (1,366.74 km) |
| Iselin to Jasper (Indiana) | 689.10 mi (1,108.99 km) |
| Iselin to Jefferson (Georgia) | 675.73 mi (1,087.49 km) |
| Iselin to Jefferson (Louisiana) | 1,152.47 mi (1,854.73 km) |
| Iselin to Jefferson City (Missouri) | 959.48 mi (1,544.14 km) |
| Iselin to Jefferson Hills (Pennsylvania) | 295.91 mi (476.23 km) |
| Iselin to Jefferson Valley-Yorktown (New York) | 58.30 mi (93.83 km) |
| Iselin to Jeffersontown (Kentucky) | 622.23 mi (1,001.38 km) |
