| Rock Island to Medford (Massachusetts) | 1,000.72 mi (1,610.51 km) |
| Rock Island to Medford (New York) | 915.07 mi (1,472.66 km) |
| Rock Island to Medford (Oregon) | 1,650.61 mi (2,656.41 km) |
| Rock Island to Medina (Ohio) | 452.66 mi (728.48 km) |
| Rock Island to Medulla (Florida) | 1,052.24 mi (1,693.42 km) |
| Rock Island to Mehlville (Missouri) | 205.56 mi (330.82 km) |
| Rock Island to Melbourne (Florida) | 1,079.50 mi (1,737.29 km) |
| Rock Island to Melissa (Texas) | 653.11 mi (1,051.08 km) |
| Rock Island to Melrose (Massachusetts) | 1,003.15 mi (1,614.41 km) |
| Rock Island to Melrose Park (Illinois) | 143.45 mi (230.86 km) |
| Rock Island to Melville (New York) | 893.61 mi (1,438.13 km) |
| Rock Island to Melvindale (Michigan) | 384.90 mi (619.44 km) |
| Rock Island to Memphis (Florida) | 1,063.90 mi (1,712.18 km) |
| Rock Island to Memphis (Tennessee) | 440.78 mi (709.37 km) |
| Rock Island to Menasha (Wisconsin) | 218.69 mi (351.95 km) |
