| Napa to Jeffersontown (Kentucky) | 1,979.61 mi (3,185.87 km) |
| Napa to Jeffersonville (Indiana) | 1,970.72 mi (3,171.56 km) |
| Napa to Jenison (Michigan) | 1,924.28 mi (3,096.84 km) |
| Napa to Jenks (Oklahoma) | 1,453.66 mi (2,339.44 km) |
| Napa to Jennings (Missouri) | 1,723.40 mi (2,773.55 km) |
| Napa to Jensen Beach (Florida) | 2,535.89 mi (4,081.13 km) |
| Napa to Jericho (New York) | 2,570.05 mi (4,136.09 km) |
| Napa to Jerome (Idaho) | 510.07 mi (820.87 km) |
| Napa to Jersey City (New Jersey) | 2,544.14 mi (4,094.40 km) |
| Napa to Jessup (Maryland) | 2,428.43 mi (3,908.19 km) |
| Napa to Johns Creek (Georgia) | 2,130.30 mi (3,428.39 km) |
| Napa to Johnson City (New York) | 2,429.28 mi (3,909.55 km) |
| Napa to Johnson City (Tennessee) | 2,180.66 mi (3,509.44 km) |
| Napa to Johnston (Iowa) | 1,523.59 mi (2,451.98 km) |
| Napa to Johnstown (Colorado) | 936.71 mi (1,507.48 km) |
