| Rock Island to Hutchinson (Kansas) | 454.32 mi (731.15 km) |
| Rock Island to Hutchinson (Minnesota) | 303.63 mi (488.65 km) |
| Rock Island to Hutto (Texas) | 848.81 mi (1,366.03 km) |
| Rock Island to Hyattsville (Maryland) | 738.75 mi (1,188.91 km) |
| Rock Island to Hybla Valley (Virginia) | 736.92 mi (1,185.96 km) |
| Rock Island to Idaho Falls (Idaho) | 1,098.98 mi (1,768.64 km) |
| Rock Island to Idylwood (Virginia) | 727.49 mi (1,170.78 km) |
| Rock Island to Ilchester (Maryland) | 743.05 mi (1,195.82 km) |
| Rock Island to Immokalee (Florida) | 1,162.79 mi (1,871.33 km) |
| Rock Island to Imperial (California) | 1,492.81 mi (2,402.44 km) |
| Rock Island to Imperial Beach (California) | 1,579.66 mi (2,542.21 km) |
| Rock Island to Independence (Kentucky) | 362.70 mi (583.71 km) |
| Rock Island to Independence (Missouri) | 257.91 mi (415.07 km) |
| Rock Island to Indian Trail (North Carolina) | 696.40 mi (1,120.76 km) |
| Rock Island to Indiana (Pennsylvania) | 597.91 mi (962.24 km) |
