| San Gwann to Jeffersonville (Indiana) | 5,211.93 mi (8,387.78 km) |
| San Gwann to Jenison (Michigan) | 5,040.54 mi (8,111.97 km) |
| San Gwann to Jenks (Oklahoma) | 5,759.13 mi (9,268.42 km) |
| San Gwann to Jennings (Missouri) | 5,396.67 mi (8,685.11 km) |
| San Gwann to Jensen Beach (Florida) | 5,383.97 mi (8,664.66 km) |
| San Gwann to Jericho (New York) | 4,570.61 mi (7,355.68 km) |
| San Gwann to Jerome (Idaho) | 6,125.62 mi (9,858.23 km) |
| San Gwann to Jersey City (New Jersey) | 4,597.22 mi (7,398.51 km) |
| San Gwann to Jessup (Maryland) | 4,775.29 mi (7,685.08 km) |
| San Gwann to Johns Creek (Georgia) | 5,312.10 mi (8,549.00 km) |
| San Gwann to Johnson City (New York) | 4,637.73 mi (7,463.70 km) |
| San Gwann to Johnson City (Tennessee) | 5,137.60 mi (8,268.17 km) |
| San Gwann to Johnston (Iowa) | 5,416.56 mi (8,717.11 km) |
| San Gwann to Johnstown (Colorado) | 5,915.39 mi (9,519.90 km) |
| San Gwann to Johnstown (Pennsylvania) | 4,832.62 mi (7,777.34 km) |
