| Rock Island to Missouri City (Texas) | 868.16 mi (1,397.17 km) |
| Rock Island to Mitchell (South Dakota) | 409.66 mi (659.28 km) |
| Rock Island to Mitchellville (Maryland) | 746.46 mi (1,201.32 km) |
| Rock Island to Moberly (Missouri) | 172.04 mi (276.88 km) |
| Rock Island to Mobile (Alabama) | 758.15 mi (1,220.13 km) |
| Rock Island to Modesto (California) | 1,633.41 mi (2,628.72 km) |
| Rock Island to Mokena (Illinois) | 140.02 mi (225.33 km) |
| Rock Island to Moline (Illinois) | 4.77 mi (7.68 km) |
| Rock Island to Moncks Corner (South Carolina) | 814.92 mi (1,311.48 km) |
| Rock Island to Monfort Heights (Ohio) | 352.09 mi (566.63 km) |
| Rock Island to Monmouth (Oregon) | 1,650.50 mi (2,656.22 km) |
| Rock Island to Monroe (Georgia) | 649.17 mi (1,044.74 km) |
| Rock Island to Monroe (Louisiana) | 623.93 mi (1,004.11 km) |
| Rock Island to Monroe (Michigan) | 372.52 mi (599.52 km) |
| Rock Island to Monroe (North Carolina) | 702.94 mi (1,131.28 km) |
