| Rock Island to Gaffney (South Carolina) | 654.90 mi (1,053.96 km) |
| Rock Island to Gages Lake (Illinois) | 146.91 mi (236.43 km) |
| Rock Island to Gahanna (Ohio) | 416.04 mi (669.55 km) |
| Rock Island to Gainesville (Florida) | 935.82 mi (1,506.05 km) |
| Rock Island to Gainesville (Georgia) | 617.39 mi (993.59 km) |
| Rock Island to Gainesville (Texas) | 649.22 mi (1,044.82 km) |
| Rock Island to Gainesville (Virginia) | 707.79 mi (1,139.07 km) |
| Rock Island to Gaithersburg (Maryland) | 721.93 mi (1,161.83 km) |
| Rock Island to Galena Park (Texas) | 850.82 mi (1,369.26 km) |
| Rock Island to Galesburg (Illinois) | 37.45 mi (60.27 km) |
| Rock Island to Galion (Ohio) | 409.26 mi (658.64 km) |
| Rock Island to Gallatin (Tennessee) | 415.38 mi (668.49 km) |
| Rock Island to Gallup (New Mexico) | 1,062.03 mi (1,709.17 km) |
| Rock Island to Galt (California) | 1,635.15 mi (2,631.53 km) |
| Rock Island to Galveston (Texas) | 878.31 mi (1,413.50 km) |
