| Effingham to Mendota Heights (Minnesota) | 462.37 mi (744.12 km) |
| Effingham to Menifee (California) | 1,628.59 mi (2,620.97 km) |
| Effingham to Menlo Park (California) | 1,816.08 mi (2,922.70 km) |
| Effingham to Menomonee Falls (Wisconsin) | 279.21 mi (449.35 km) |
| Effingham to Menomonie (Wisconsin) | 434.16 mi (698.71 km) |
| Effingham to Mentor (Ohio) | 418.85 mi (674.07 km) |
| Effingham to Mequon (Wisconsin) | 285.82 mi (459.98 km) |
| Effingham to Merced (California) | 1,728.85 mi (2,782.32 km) |
| Effingham to Mercedes (Texas) | 1,047.09 mi (1,685.13 km) |
| Effingham to Mercer Island (Washington) | 1,773.81 mi (2,854.68 km) |
| Effingham to Mercerville (New Jersey) | 740.25 mi (1,191.31 km) |
| Effingham to Meriden (Connecticut) | 845.29 mi (1,360.36 km) |
| Effingham to Meridian (Idaho) | 1,469.60 mi (2,365.10 km) |
| Effingham to Meridian (Mississippi) | 465.47 mi (749.10 km) |
| Effingham to Merriam (Kansas) | 329.51 mi (530.29 km) |
