| Healdsburg to McKeesport (Pennsylvania) | 2,274.59 mi (3,660.60 km) |
| Healdsburg to McKinleyville (California) | 173.31 mi (278.91 km) |
| Healdsburg to McKinney (Texas) | 1,507.45 mi (2,426.01 km) |
| Healdsburg to McLean (Virginia) | 2,433.44 mi (3,916.24 km) |
| Healdsburg to McMinnville (Oregon) | 455.54 mi (733.12 km) |
| Healdsburg to McMinnville (Tennessee) | 2,038.32 mi (3,280.35 km) |
| Healdsburg to McNair (Virginia) | 2,421.99 mi (3,897.82 km) |
| Healdsburg to McPherson (Kansas) | 1,358.75 mi (2,186.70 km) |
| Healdsburg to Mead Valley (California) | 453.91 mi (730.50 km) |
| Healdsburg to Meadow Woods (Florida) | 2,471.89 mi (3,978.13 km) |
| Healdsburg to Meadowbrook (Virginia) | 2,446.33 mi (3,936.99 km) |
| Healdsburg to Meadville (Pennsylvania) | 2,243.10 mi (3,609.92 km) |
| Healdsburg to Mebane (North Carolina) | 2,378.09 mi (3,827.16 km) |
| Healdsburg to Mechanicsville (Virginia) | 2,448.77 mi (3,940.91 km) |
| Healdsburg to Medford (Massachusetts) | 2,688.80 mi (4,327.21 km) |
