| Effingham to Mitchell (South Dakota) | 584.88 mi (941.28 km) |
| Effingham to Mitchellville (Maryland) | 629.63 mi (1,013.29 km) |
| Effingham to Moberly (Missouri) | 208.83 mi (336.09 km) |
| Effingham to Mobile (Alabama) | 583.82 mi (939.57 km) |
| Effingham to Modesto (California) | 1,751.35 mi (2,818.52 km) |
| Effingham to Mokena (Illinois) | 170.39 mi (274.22 km) |
| Effingham to Moline (Illinois) | 192.57 mi (309.91 km) |
| Effingham to Moncks Corner (South Carolina) | 628.67 mi (1,011.75 km) |
| Effingham to Monfort Heights (Ohio) | 211.32 mi (340.08 km) |
| Effingham to Monmouth (Oregon) | 1,809.85 mi (2,912.67 km) |
| Effingham to Monroe (Georgia) | 455.21 mi (732.60 km) |
| Effingham to Monroe (Louisiana) | 496.99 mi (799.82 km) |
| Effingham to Monroe (Michigan) | 332.95 mi (535.83 km) |
| Effingham to Monroe (North Carolina) | 524.01 mi (843.32 km) |
| Effingham to Monroe (Ohio) | 224.88 mi (361.91 km) |
