| Hard to Hilliard (Ohio) | 4,377.35 mi (7,044.66 km) |
| Hard to Hillsboro (Oregon) | 5,399.32 mi (8,689.36 km) |
| Hard to Hillsborough (California) | 5,859.42 mi (9,429.83 km) |
| Hard to Hillsborough (New Jersey) | 4,009.56 mi (6,452.76 km) |
| Hard to Hilo (Hawaii) | 7,699.86 mi (12,391.73 km) |
| Hard to Hilton Head Island (South Carolina) | 4,639.68 mi (7,466.84 km) |
| Hard to Hinesville (Georgia) | 4,693.87 mi (7,554.06 km) |
| Hard to Hinsdale (Illinois) | 4,482.54 mi (7,213.96 km) |
| Hard to Hobart (Indiana) | 4,470.82 mi (7,195.09 km) |
| Hard to Hobbs (New Mexico) | 5,510.77 mi (8,868.72 km) |
| Hard to Hobe Sound (Florida) | 4,856.59 mi (7,815.93 km) |
| Hard to Hoboken (New Jersey) | 3,973.56 mi (6,394.82 km) |
| Hard to Hockessin (Delaware) | 4,083.15 mi (6,571.20 km) |
| Hard to Hoffman Estates (Illinois) | 4,478.65 mi (7,207.69 km) |
| Hard to Holbrook (New York) | 3,931.49 mi (6,327.12 km) |
