Barrios de Wisconsin M
- MacArthur Heights (2)
- Maple Tree (4)
- Marquette (1)
- Marquette Park (1)
- Marquette-Dane (143)
- Martin Drive (1)
- McAuliffe Park (2)
- McGovern Park (7)
- Meadowood (2)
- Menomonee River Hills (1)
- Menomonee River Hills East (2)
- Merrill Park (13)
- Metcalfe Park (5)
- Middleton Hills (1)
- Midtown Milwaukee (4)
- Midvale Heights (5)
- Miller Valley (1)
- Minooka Parkway Estates (1)
- Mitchell Park (1)
- Mitchell West (3)
- Morgan Heights (1)
- Morgandale (3)
- Mount Mary (1)
- Mount Pleasant (23)
- Murray Hill (51)
- Muskegg Way (8)