| Rock Island to Fontana (California) | 1,546.04 mi (2,488.12 km) |
| Rock Island to Foothill Farms (California) | 1,629.13 mi (2,621.83 km) |
| Rock Island to Fords (New Jersey) | 849.56 mi (1,367.24 km) |
| Rock Island to Forest (Virginia) | 665.53 mi (1,071.07 km) |
| Rock Island to Forest Acres (South Carolina) | 733.79 mi (1,180.91 km) |
| Rock Island to Forest City (Florida) | 1,023.35 mi (1,646.93 km) |
| Rock Island to Forest Grove (Oregon) | 1,642.55 mi (2,643.43 km) |
| Rock Island to Forest Hill (Texas) | 710.88 mi (1,144.06 km) |
| Rock Island to Forest Hills (Michigan) | 280.12 mi (450.80 km) |
| Rock Island to Forest Lake (Minnesota) | 287.34 mi (462.43 km) |
| Rock Island to Forest Park (Georgia) | 640.16 mi (1,030.23 km) |
| Rock Island to Forest Park (Illinois) | 145.43 mi (234.05 km) |
| Rock Island to Forest Park (Ohio) | 352.59 mi (567.44 km) |
| Rock Island to Forestville (Maryland) | 745.40 mi (1,199.61 km) |
| Rock Island to Forestville (Ohio) | 368.41 mi (592.89 km) |
