| Rock Island to Live Oak (Texas) | 930.75 mi (1,497.91 km) |
| Rock Island to Livermore (California) | 1,671.54 mi (2,690.08 km) |
| Rock Island to Livingston (California) | 1,624.68 mi (2,614.68 km) |
| Rock Island to Livonia (Michigan) | 375.94 mi (605.02 km) |
| Rock Island to Lochearn (Maryland) | 742.53 mi (1,194.99 km) |
| Rock Island to Lockhart (Florida) | 1,025.74 mi (1,650.77 km) |
| Rock Island to Lockhart (Texas) | 893.75 mi (1,438.36 km) |
| Rock Island to Lockport (Illinois) | 132.33 mi (212.96 km) |
| Rock Island to Lockport (New York) | 617.97 mi (994.53 km) |
| Rock Island to Lodi (California) | 1,637.89 mi (2,635.93 km) |
| Rock Island to Lodi (New Jersey) | 857.86 mi (1,380.59 km) |
| Rock Island to Logan (Utah) | 1,095.71 mi (1,763.37 km) |
| Rock Island to Logansport (Indiana) | 225.81 mi (363.41 km) |
| Rock Island to Loganville (Georgia) | 641.45 mi (1,032.31 km) |
| Rock Island to Loma Linda (California) | 1,536.99 mi (2,473.55 km) |
