- Allen Chapel
- Arbor
- Ash
- Augusta
- Abell City
- Adobe Crossing
- Alamo Ranchettes Colonia
- Aberfoyle
- Ardis Heights
- Arrowhead Island
- Asia
- Adobes
- Arden
- Acworth
- Addielou
- Aikin Grove
- Amelia
- Atreco
- Astin
- Anadarko
- Arlam
- Arcadia Park
- Audelia
- Anthony Harbor
- Algodon Colonia
- Adams
- Agua Dulce Ranch Number 1 Colonia
- Agua Dulce Ranch Number 2 Colonia
- Agua Dulce Ranch Number 3 Colonia
- Aimee Acres Colonia