| Portage to Morris (Illinois) | 157.00 mi (252.67 km) |
| Portage to Morristown (New Jersey) | 582.79 mi (937.90 km) |
| Portage to Morristown (Tennessee) | 431.99 mi (695.21 km) |
| Portage to Morrisville (North Carolina) | 569.52 mi (916.56 km) |
| Portage to Morro Bay (California) | 1,941.84 mi (3,125.09 km) |
| Portage to Morton (Illinois) | 228.81 mi (368.23 km) |
| Portage to Morton Grove (Illinois) | 113.19 mi (182.16 km) |
| Portage to Moscow (Idaho) | 1,569.06 mi (2,525.15 km) |
| Portage to Moses Lake (Washington) | 1,676.33 mi (2,697.79 km) |
| Portage to Moss Bluff (Louisiana) | 924.02 mi (1,487.06 km) |
| Portage to Moss Point (Mississippi) | 829.77 mi (1,335.38 km) |
| Portage to Moultrie (Georgia) | 769.43 mi (1,238.28 km) |
| Portage to Mounds View (Minnesota) | 430.26 mi (692.43 km) |
| Portage to Mount Airy (North Carolina) | 474.46 mi (763.56 km) |
| Portage to Mount Clemens (Michigan) | 140.90 mi (226.75 km) |
