Maryland cities starting with M
- Manchester, MD 11
- Mardela Springs, MD 8
- Marion Station, MD 7
- Marriottsville, MD 5
- Marydel, MD 6
- Mechanicsville, MD 10
- Middletown, MD 11
- Millersville, MD 13
- Millington, MD 6
- Mitchellville, MD 8
- Monkton, MD 6
- Mountain Lake Park, MD 7
- Mount Airy, MD 21
- Mount Rainier, MD 11
- Mount Savage, MD 5
- Myersville, MD 11