| Rock Island to Willow Grove (Pennsylvania) | 812.83 mi (1,308.12 km) |
| Rock Island to Willowbrook (California) | 1,591.11 mi (2,560.65 km) |
| Rock Island to Willowick (Ohio) | 471.21 mi (758.35 km) |
| Rock Island to Wilmette (Illinois) | 152.95 mi (246.14 km) |
| Rock Island to Wilmington (Delaware) | 796.94 mi (1,282.55 km) |
| Rock Island to Wilmington (North Carolina) | 853.81 mi (1,374.07 km) |
| Rock Island to Wilmington (Ohio) | 382.46 mi (615.52 km) |
| Rock Island to Wilmington Island (Georgia) | 841.94 mi (1,354.97 km) |
| Rock Island to Wilson (North Carolina) | 788.82 mi (1,269.49 km) |
| Rock Island to Wilsonville (Oregon) | 1,626.61 mi (2,617.78 km) |
| Rock Island to Wilton Manors (Florida) | 1,213.72 mi (1,953.30 km) |
| Rock Island to Wimauma (Florida) | 1,060.53 mi (1,706.77 km) |
| Rock Island to Winchester (Kentucky) | 415.46 mi (668.61 km) |
| Rock Island to Winchester (Nevada) | 1,367.29 mi (2,200.44 km) |
| Rock Island to Winchester (Virginia) | 671.96 mi (1,081.42 km) |
