| Port Huron to McHenry (Illinois) | 300.70 mi (483.93 km) |
| Port Huron to McKeesport (Pennsylvania) | 226.29 mi (364.18 km) |
| Port Huron to McKinleyville (California) | 2,122.22 mi (3,415.38 km) |
| Port Huron to McKinney (Texas) | 1,024.67 mi (1,649.05 km) |
| Port Huron to McLean (Virginia) | 390.65 mi (628.70 km) |
| Port Huron to McMinnville (Oregon) | 2,006.50 mi (3,229.14 km) |
| Port Huron to McMinnville (Tennessee) | 534.67 mi (860.47 km) |
| Port Huron to McNair (Virginia) | 382.42 mi (615.44 km) |
| Port Huron to McPherson (Kansas) | 857.31 mi (1,379.71 km) |
| Port Huron to Mead Valley (California) | 1,973.34 mi (3,175.78 km) |
| Port Huron to Meadow Woods (Florida) | 1,011.45 mi (1,627.76 km) |
| Port Huron to Meadowbrook (Virginia) | 464.33 mi (747.27 km) |
| Port Huron to Meadville (Pennsylvania) | 149.04 mi (239.85 km) |
| Port Huron to Mebane (North Carolina) | 505.39 mi (813.35 km) |
| Port Huron to Mechanicsville (Virginia) | 456.59 mi (734.82 km) |
