- A and E Ramirez Colonia
- A and E Ramirez Colonia Number 2
- A F Pierce Colonia
- A T Martinez Colonia
- Abbott
- Abell
- Abell City
- Abercrombie
- Abercrombie
- Aberdeen
- Aberfoyle
- Abernathy
- Abilene
- Abington
- Ables Springs
- Abner
- Abram
- Abram North Colonia
- Abram-Perezville
- Abshier Settlement
- Acacia Colonia
- Academy
- Acala
- Acampo
- Ace
- Acevedo Colonia Number 4
- Acevedo Number 3 Colonia
- Ackerly
- Acme
- Acosta Colonia