| Gateway to McKeesport (Pennsylvania) | 957.12 mi (1,540.33 km) |
| Gateway to McKinleyville (California) | 2,596.43 mi (4,178.55 km) |
| Gateway to McKinney (Texas) | 1,002.74 mi (1,613.76 km) |
| Gateway to McLean (Virginia) | 893.92 mi (1,438.62 km) |
| Gateway to McMinnville (Oregon) | 2,613.97 mi (4,206.78 km) |
| Gateway to McMinnville (Tennessee) | 672.81 mi (1,082.79 km) |
| Gateway to McNair (Virginia) | 890.81 mi (1,433.62 km) |
| Gateway to McPherson (Kansas) | 1,231.31 mi (1,981.60 km) |
| Gateway to Mead Valley (California) | 2,169.14 mi (3,490.90 km) |
| Gateway to Meadow Woods (Florida) | 126.09 mi (202.93 km) |
| Gateway to Meadowbrook (Virginia) | 790.11 mi (1,271.56 km) |
| Gateway to Meadville (Pennsylvania) | 1,045.07 mi (1,681.87 km) |
| Gateway to Mebane (North Carolina) | 672.71 mi (1,082.62 km) |
| Gateway to Mechanicsville (Virginia) | 805.05 mi (1,295.60 km) |
| Gateway to Medford (Massachusetts) | 1,248.67 mi (2,009.54 km) |
