| Mercer Island to Hillcrest Heights (Maryland) | 2,322.84 mi (3,738.25 km) |
| Mercer Island to Hilliard (Ohio) | 1,993.85 mi (3,208.79 km) |
| Mercer Island to Hillsboro (Oregon) | 144.78 mi (233.01 km) |
| Mercer Island to Hillsborough (California) | 691.58 mi (1,112.99 km) |
| Mercer Island to Hillsborough (New Jersey) | 2,374.36 mi (3,821.16 km) |
| Mercer Island to Hilo (Hawaii) | 2,661.84 mi (4,283.82 km) |
| Mercer Island to Hilton Head Island (South Carolina) | 2,405.69 mi (3,871.58 km) |
| Mercer Island to Hinesville (Georgia) | 2,382.04 mi (3,833.52 km) |
| Mercer Island to Hinsdale (Illinois) | 1,716.64 mi (2,762.66 km) |
| Mercer Island to Hobart (Indiana) | 1,755.65 mi (2,825.45 km) |
| Mercer Island to Hobbs (New Mexico) | 1,429.65 mi (2,300.79 km) |
| Mercer Island to Hobe Sound (Florida) | 2,665.45 mi (4,289.63 km) |
| Mercer Island to Hoboken (New Jersey) | 2,395.55 mi (3,855.27 km) |
| Mercer Island to Hockessin (Delaware) | 2,350.39 mi (3,782.59 km) |
| Mercer Island to Hoffman Estates (Illinois) | 1,698.74 mi (2,733.86 km) |
