| Iselin to Jeffersonville (Indiana) | 626.18 mi (1,007.73 km) |
| Iselin to Jenison (Michigan) | 614.42 mi (988.81 km) |
| Iselin to Jenks (Oklahoma) | 1,212.78 mi (1,951.79 km) |
| Iselin to Jennings (Missouri) | 856.74 mi (1,378.79 km) |
| Iselin to Jensen Beach (Florida) | 980.78 mi (1,578.42 km) |
| Iselin to Jericho (New York) | 43.34 mi (69.74 km) |
| Iselin to Jerome (Idaho) | 2,061.24 mi (3,317.24 km) |
| Iselin to Jersey City (New Jersey) | 16.60 mi (26.71 km) |
| Iselin to Jessup (Maryland) | 163.27 mi (262.76 km) |
| Iselin to Johns Creek (Georgia) | 705.69 mi (1,135.71 km) |
| Iselin to Johnson City (New York) | 137.11 mi (220.66 km) |
| Iselin to Johnson City (Tennessee) | 524.74 mi (844.49 km) |
| Iselin to Johnston (Iowa) | 1,010.76 mi (1,626.66 km) |
| Iselin to Johnstown (Colorado) | 1,602.16 mi (2,578.42 km) |
| Iselin to Johnstown (Pennsylvania) | 242.54 mi (390.33 km) |
