| Effingham to Monticello (Minnesota) | 504.11 mi (811.29 km) |
| Effingham to Montrose (Colorado) | 1,038.78 mi (1,671.75 km) |
| Effingham to Moody (Alabama) | 398.25 mi (640.92 km) |
| Effingham to Moore (Oklahoma) | 556.14 mi (895.02 km) |
| Effingham to Moorestown-Lenola (New Jersey) | 725.55 mi (1,167.66 km) |
| Effingham to Mooresville (North Carolina) | 489.29 mi (787.44 km) |
| Effingham to Moorhead (Minnesota) | 675.97 mi (1,087.88 km) |
| Effingham to Moorpark (California) | 1,704.49 mi (2,743.11 km) |
| Effingham to Moraga (California) | 1,807.55 mi (2,908.98 km) |
| Effingham to Moreno Valley (California) | 1,623.76 mi (2,613.20 km) |
| Effingham to Morgan City (Louisiana) | 667.71 mi (1,074.57 km) |
| Effingham to Morgan Hill (California) | 1,793.86 mi (2,886.95 km) |
| Effingham to Morganton (North Carolina) | 442.31 mi (711.82 km) |
| Effingham to Morgantown (West Virginia) | 460.75 mi (741.50 km) |
| Effingham to Morris (Illinois) | 155.89 mi (250.89 km) |
