| Healdsburg to Mitchell (South Dakota) | 1,333.09 mi (2,145.40 km) |
| Healdsburg to Mitchellville (Maryland) | 2,453.34 mi (3,948.27 km) |
| Healdsburg to Moberly (Missouri) | 1,626.58 mi (2,617.73 km) |
| Healdsburg to Mobile (Alabama) | 2,036.54 mi (3,277.49 km) |
| Healdsburg to Modesto (California) | 121.96 mi (196.28 km) |
| Healdsburg to Mokena (Illinois) | 1,847.90 mi (2,973.91 km) |
| Healdsburg to Moline (Illinois) | 1,713.43 mi (2,757.50 km) |
| Healdsburg to Moncks Corner (South Carolina) | 2,405.95 mi (3,872.01 km) |
| Healdsburg to Monfort Heights (Ohio) | 2,041.99 mi (3,286.26 km) |
| Healdsburg to Monmouth (Oregon) | 430.73 mi (693.19 km) |
| Healdsburg to Monroe (Georgia) | 2,191.02 mi (3,526.11 km) |
| Healdsburg to Monroe (Louisiana) | 1,771.94 mi (2,851.67 km) |
| Healdsburg to Monroe (Michigan) | 2,075.33 mi (3,339.92 km) |
| Healdsburg to Monroe (North Carolina) | 2,332.76 mi (3,754.22 km) |
| Healdsburg to Monroe (Ohio) | 2,051.12 mi (3,300.96 km) |
