| Rock Island to Home Gardens (California) | 1,555.62 mi (2,503.52 km) |
| Rock Island to Homer Glen (Illinois) | 136.48 mi (219.65 km) |
| Rock Island to Homestead (Florida) | 1,248.39 mi (2,009.09 km) |
| Rock Island to Homewood (Alabama) | 590.57 mi (950.43 km) |
| Rock Island to Homewood (Illinois) | 151.28 mi (243.46 km) |
| Rock Island to Homosassa Springs (Florida) | 984.49 mi (1,584.38 km) |
| Rock Island to Honeygo (Maryland) | 756.99 mi (1,218.25 km) |
| Rock Island to Honolulu (Hawaii) | 4,096.79 mi (6,593.15 km) |
| Rock Island to Hoover (Alabama) | 596.19 mi (959.48 km) |
| Rock Island to Hopatcong (New Jersey) | 827.25 mi (1,331.34 km) |
| Rock Island to Hope Mills (North Carolina) | 773.27 mi (1,244.46 km) |
| Rock Island to Hopewell (Virginia) | 764.91 mi (1,231.00 km) |
| Rock Island to Hopkins (Minnesota) | 277.87 mi (447.19 km) |
| Rock Island to Hopkinsville (Kentucky) | 360.62 mi (580.37 km) |
| Rock Island to Horizon City (Texas) | 1,095.92 mi (1,763.72 km) |
