- Ma Leg Island
- Mabels Manor
- MacDonald Farms
- Maceys Corner
- MacGills Common
- Mackall
- Mackall Estates
- Macton
- Maddox
- Maddox Island
- Maddox Island
- Madison
- Madison Place
- Madonna
- Madonna Hills
- Madonna Manor
- Magness
- Magnolia
- Magnolia Estates Mobile Home Park
- Magnolia Terrace
- Mago Vista Beach
- Magothy Beach
- Magothy Estates
- Magothy Forest
- Magothy Forge
- Magruder Landing
- Maid Marion
- Maidens Fancy Manor
- Mainbrace
- Mairs Mill