- Meredeth Manor
- Mereta
- Meridian
- Merit
- Merito
- Merkel
- Merle
- Merrelltown
- Merrick
- Merrill Colonia
- Mertens
- Mertzon
- Mesa Verde Colonia
- Mesilla Park
- Mesquite
- Mesquite
- Mesquite Acres Colonia
- Mesquite Island
- Mesquite Number 1 Colonia
- Mesquite Number 2 Colonia
- Mesquite Number 3 Colonia
- Mesquite Number 4 Colonia
- Mesquite Rincon
- Metcalf Gap
- Metz
- Mewshaw
- Mexia
- Meyerland
- Meyersville
- Mi Ranchito Estate