| Rock Island to Grand Junction (Colorado) | 960.36 mi (1,545.55 km) |
| Rock Island to Grand Prairie (Texas) | 702.48 mi (1,130.53 km) |
| Rock Island to Grand Rapids (Michigan) | 272.31 mi (438.23 km) |
| Rock Island to Grand Rapids (Minnesota) | 424.27 mi (682.79 km) |
| Rock Island to Grand Terrace (California) | 1,540.65 mi (2,479.44 km) |
| Rock Island to Grandview (Missouri) | 274.32 mi (441.47 km) |
| Rock Island to Grandview (Washington) | 1,488.74 mi (2,395.89 km) |
| Rock Island to Grandville (Michigan) | 266.07 mi (428.20 km) |
| Rock Island to Granger (Indiana) | 230.52 mi (370.98 km) |
| Rock Island to Granite Bay (California) | 1,618.59 mi (2,604.86 km) |
| Rock Island to Granite City (Illinois) | 190.86 mi (307.16 km) |
| Rock Island to Grants Pass (Oregon) | 1,673.67 mi (2,693.51 km) |
| Rock Island to Grantsville (Utah) | 1,139.47 mi (1,833.80 km) |
| Rock Island to Grapevine (Texas) | 689.01 mi (1,108.86 km) |
| Rock Island to Grass Valley (California) | 1,603.64 mi (2,580.81 km) |
