| National City to McHenry (Illinois) | 1,703.98 mi (2,742.29 km) |
| National City to McKeesport (Pennsylvania) | 2,119.13 mi (3,410.41 km) |
| National City to McKinleyville (California) | 690.08 mi (1,110.58 km) |
| National City to McKinney (Texas) | 1,183.51 mi (1,904.68 km) |
| National City to McLean (Virginia) | 2,259.25 mi (3,635.91 km) |
| National City to McMinnville (Oregon) | 925.91 mi (1,490.10 km) |
| National City to McMinnville (Tennessee) | 1,794.66 mi (2,888.23 km) |
| National City to McNair (Virginia) | 2,247.57 mi (3,617.12 km) |
| National City to McPherson (Kansas) | 1,159.29 mi (1,865.70 km) |
| National City to Mead Valley (California) | 81.41 mi (131.02 km) |
| National City to Meadow Woods (Florida) | 2,138.52 mi (3,441.62 km) |
| National City to Meadowbrook (Virginia) | 2,248.77 mi (3,619.04 km) |
| National City to Meadville (Pennsylvania) | 2,109.23 mi (3,394.48 km) |
| National City to Mebane (North Carolina) | 2,156.38 mi (3,470.36 km) |
| National City to Mechanicsville (Virginia) | 2,254.38 mi (3,628.07 km) |
