| Rock Island to Hamtramck (Michigan) | 391.99 mi (630.85 km) |
| Rock Island to Hanahan (South Carolina) | 827.71 mi (1,332.08 km) |
| Rock Island to Hanford (California) | 1,595.09 mi (2,567.05 km) |
| Rock Island to Hannibal (Missouri) | 128.84 mi (207.35 km) |
| Rock Island to Hanover (Pennsylvania) | 721.34 mi (1,160.89 km) |
| Rock Island to Hanover Park (Illinois) | 130.60 mi (210.18 km) |
| Rock Island to Happy Valley (Oregon) | 1,613.61 mi (2,596.86 km) |
| Rock Island to Harker Heights (Texas) | 819.27 mi (1,318.48 km) |
| Rock Island to Harlingen (Texas) | 1,130.80 mi (1,819.85 km) |
| Rock Island to Harper Woods (Michigan) | 398.77 mi (641.76 km) |
| Rock Island to Harrisburg (North Carolina) | 685.08 mi (1,102.53 km) |
| Rock Island to Harrisburg (Pennsylvania) | 719.66 mi (1,158.19 km) |
| Rock Island to Harrison (Arkansas) | 385.98 mi (621.17 km) |
| Rock Island to Harrison (New Jersey) | 855.53 mi (1,376.84 km) |
| Rock Island to Harrison (New York) | 875.20 mi (1,408.50 km) |
