| Valley Center to McHenry (Illinois) | 1,679.74 mi (2,703.29 km) |
| Valley Center to McKeesport (Pennsylvania) | 2,098.33 mi (3,376.94 km) |
| Valley Center to McKinleyville (California) | 659.80 mi (1,061.85 km) |
| Valley Center to McKinney (Texas) | 1,174.36 mi (1,889.95 km) |
| Valley Center to McLean (Virginia) | 2,240.05 mi (3,605.01 km) |
| Valley Center to McMinnville (Oregon) | 890.49 mi (1,433.10 km) |
| Valley Center to McMinnville (Tennessee) | 1,779.98 mi (2,864.60 km) |
| Valley Center to McNair (Virginia) | 2,228.36 mi (3,586.20 km) |
| Valley Center to McPherson (Kansas) | 1,138.67 mi (1,832.52 km) |
| Valley Center to Mead Valley (California) | 44.28 mi (71.27 km) |
| Valley Center to Meadow Woods (Florida) | 2,132.96 mi (3,432.67 km) |
| Valley Center to Meadowbrook (Virginia) | 2,231.30 mi (3,590.92 km) |
| Valley Center to Meadville (Pennsylvania) | 2,086.94 mi (3,358.60 km) |
| Valley Center to Mebane (North Carolina) | 2,140.64 mi (3,445.03 km) |
| Valley Center to Mechanicsville (Virginia) | 2,236.67 mi (3,599.57 km) |
