| Johnston to Hillcrest Heights (Maryland) | 903.76 mi (1,454.47 km) |
| Johnston to Hilliard (Ohio) | 563.43 mi (906.75 km) |
| Johnston to Hillsboro (Oregon) | 1,476.78 mi (2,376.65 km) |
| Johnston to Hillsborough (California) | 1,543.04 mi (2,483.28 km) |
| Johnston to Hillsborough (New Jersey) | 994.30 mi (1,600.17 km) |
| Johnston to Hilo (Hawaii) | 3,860.40 mi (6,212.71 km) |
| Johnston to Hilton Head Island (South Carolina) | 969.69 mi (1,560.56 km) |
| Johnston to Hinesville (Georgia) | 954.19 mi (1,535.62 km) |
| Johnston to Hinsdale (Illinois) | 298.83 mi (480.93 km) |
| Johnston to Hobart (Indiana) | 333.42 mi (536.58 km) |
| Johnston to Hobbs (New Mexico) | 807.11 mi (1,298.92 km) |
| Johnston to Hobe Sound (Florida) | 1,269.29 mi (2,042.72 km) |
| Johnston to Hoboken (New Jersey) | 1,023.46 mi (1,647.10 km) |
| Johnston to Hockessin (Delaware) | 951.90 mi (1,531.93 km) |
| Johnston to Hoffman Estates (Illinois) | 287.99 mi (463.48 km) |
