| Rock Island to Dixon (California) | 1,658.63 mi (2,669.31 km) |
| Rock Island to Dixon (Illinois) | 62.54 mi (100.65 km) |
| Rock Island to Dobbs Ferry (New York) | 867.53 mi (1,396.16 km) |
| Rock Island to Doctor Phillips (Florida) | 1,035.18 mi (1,665.97 km) |
| Rock Island to Dodge City (Kansas) | 563.36 mi (906.64 km) |
| Rock Island to Dolton (Illinois) | 154.72 mi (249.00 km) |
| Rock Island to Donna (Texas) | 1,141.18 mi (1,836.56 km) |
| Rock Island to Dorado (Puerto Rico) | 2,139.67 mi (3,443.46 km) |
| Rock Island to Doral (Florida) | 1,229.07 mi (1,978.00 km) |
| Rock Island to Doraville (Georgia) | 625.78 mi (1,007.09 km) |
| Rock Island to Dothan (Alabama) | 763.26 mi (1,228.35 km) |
| Rock Island to Douglas (Arizona) | 1,260.04 mi (2,027.84 km) |
| Rock Island to Douglas (Georgia) | 810.48 mi (1,304.34 km) |
| Rock Island to Douglasville (Georgia) | 623.21 mi (1,002.97 km) |
| Rock Island to Dover (Delaware) | 808.31 mi (1,300.85 km) |
