Iowa cities starting with M
- Madrid, IA 7
- Manchester, IA 11
- Manning, IA 7
- Manson, IA 8
- Mapleton, IA 5
- Maquoketa, IA 9
- Marcus, IA 5
- Marengo, IA 8
- Marion, IA 29
- Marshalltown, IA 44
- Mason City, IA 47
- Maxwell, IA 6
- Merrill, IA 6
- Milford, IA 6
- Missouri Valley, IA 9
- Mitchellville, IA 6
- Monona, IA 5
- Montezuma, IA 6
- Monticello, IA 13
- Montrose, IA 5
- Mount Ayr, IA 12
- Mount Pleasant, IA 17
- Mount Vernon, IA 7
- Muscatine, IA 38