- Afton
- Agnes
- Agua Dulce
- Agua Dulce Colonia
- Agua Dulce Colonia
- Agua Dulce Number 2 Colonia
- Agua Dulce Number 3 Colonia
- Agua Dulce Number 4 Colonia
- Agua Dulce Number 5 Colonia
- Agua Dulce Ranch Number 1 Colonia
- Agua Dulce Ranch Number 2 Colonia
- Agua Dulce Ranch Number 3 Colonia
- Agua Nueva
- Aguilares
- Aguilares Acres Colonia
- Aiken
- Aiken
- Aikin Grove
- Aimee Acres Colonia
- Aimee Acres Number 2 Colonia
- Ainsworth
- Airline Estates
- Airline Farms
- Airline Terrace
- Airport Addition Colonia
- Airport City
- Airport Heights Colonia
- Airport Road Addition
- Airport Road Addition Colonia
- Airstream