- Monte Alban Colonia
- Monte Christo
- Monte Cristo Acres Colonia
- Monte Cristo Heights Colonia
- Monte Cristo Hills Colonia
- Montemayor Subivision Colonia
- Moore Road Colonia
- Moore Road Colonia
- Moorefield Acres Colonia
- Moorefield Grove Estates Colonia
- Moreno Colonia
- Morningside Estates Colonia
- Morningside Mobile Home Park Colonia
- Morningsun Colonia
- Muniz Colonia
- Munoz Estates Colonia
- Murillo Colonia
- Mustang Ridge
- Mahl
- Montfort
- Mattox
- Mayfield
- Mayflower
- Menlow
- Midway
- Mountain View
- McNorton
- Mustang Beach
- Mustang Island
- Mambrino