| Portage to Mendota (California) | 1,879.37 mi (3,024.56 km) |
| Portage to Mendota Heights (Minnesota) | 420.83 mi (677.26 km) |
| Portage to Menifee (California) | 1,806.89 mi (2,907.91 km) |
| Portage to Menlo Park (California) | 1,952.66 mi (3,142.51 km) |
| Portage to Menomonee Falls (Wisconsin) | 144.36 mi (232.32 km) |
| Portage to Menomonie (Wisconsin) | 366.77 mi (590.26 km) |
| Portage to Mentor (Ohio) | 221.44 mi (356.38 km) |
| Portage to Mequon (Wisconsin) | 140.97 mi (226.88 km) |
| Portage to Merced (California) | 1,870.33 mi (3,010.01 km) |
| Portage to Mercedes (Texas) | 1,310.35 mi (2,108.80 km) |
| Portage to Mercer Island (Washington) | 1,813.99 mi (2,919.33 km) |
| Portage to Mercerville (New Jersey) | 582.02 mi (936.67 km) |
| Portage to Meriden (Connecticut) | 659.35 mi (1,061.13 km) |
| Portage to Meridian (Idaho) | 1,553.21 mi (2,499.66 km) |
| Portage to Meridian (Mississippi) | 699.10 mi (1,125.10 km) |
