| Rock Island to University Place (Washington) | 1,616.22 mi (2,601.05 km) |
| Rock Island to Upland (California) | 1,555.60 mi (2,503.49 km) |
| Rock Island to Upper Arlington (Ohio) | 405.51 mi (652.61 km) |
| Rock Island to Upper Grand Lagoon (Florida) | 826.22 mi (1,329.67 km) |
| Rock Island to Upper Montclair (New Jersey) | 852.04 mi (1,371.23 km) |
| Rock Island to Urbana (Illinois) | 156.16 mi (251.32 km) |
| Rock Island to Urbana (Maryland) | 711.48 mi (1,145.01 km) |
| Rock Island to Urbana (Ohio) | 369.28 mi (594.30 km) |
| Rock Island to Urbandale (Iowa) | 165.78 mi (266.80 km) |
| Rock Island to Utica (New York) | 791.84 mi (1,274.35 km) |
| Rock Island to Uvalde (Texas) | 991.34 mi (1,595.41 km) |
| Rock Island to Vacaville (California) | 1,667.80 mi (2,684.06 km) |
| Rock Island to Vadnais Heights (Minnesota) | 277.72 mi (446.95 km) |
| Rock Island to Vail (Arizona) | 1,285.99 mi (2,069.60 km) |
| Rock Island to Valdosta (Georgia) | 838.50 mi (1,349.43 km) |
