| Rock Island to Greenwood (South Carolina) | 680.65 mi (1,095.40 km) |
| Rock Island to Greenwood Village (Colorado) | 762.34 mi (1,226.86 km) |
| Rock Island to Greer (South Carolina) | 639.40 mi (1,029.02 km) |
| Rock Island to Grenada (Mississippi) | 532.87 mi (857.57 km) |
| Rock Island to Gresham (Oregon) | 1,610.25 mi (2,591.45 km) |
| Rock Island to Gretna (Louisiana) | 799.26 mi (1,286.28 km) |
| Rock Island to Griffin (Georgia) | 665.29 mi (1,070.67 km) |
| Rock Island to Griffith (Indiana) | 163.50 mi (263.13 km) |
| Rock Island to Grimes (Iowa) | 166.64 mi (268.17 km) |
| Rock Island to Grosse Pointe Park (Michigan) | 398.31 mi (641.02 km) |
| Rock Island to Grosse Pointe Woods (Michigan) | 400.30 mi (644.22 km) |
| Rock Island to Grove City (Ohio) | 408.93 mi (658.10 km) |
| Rock Island to Groveland (Florida) | 1,016.01 mi (1,635.10 km) |
| Rock Island to Grover Beach (California) | 1,677.50 mi (2,699.67 km) |
| Rock Island to Groves (Texas) | 817.73 mi (1,316.01 km) |
