- Mabie
- Macdoel
- Mackenson
- MacKenzie Island
- Macomber Palms
- Mad River
- Madeline
- Madera
- Madera Acres
- Madera Country Club Estates
- Madera Highlands
- Madera Ranchos
- Madison
- Madrone
- Magalia
- Magnolia
- Magra
- Magunden
- Main Island
- Maine Prairie
- Maintop Island
- Majors
- Malaga
- Malby Crossing
- Malibu
- Malibu Beach
- Malibu Bowl
- Malibu Hills
- Malibu Junction
- Malibu Vista