Communities
- Agua Nueva, TX
- Aguilares, TX
- Aiken, TX (Bell County)
- Aiken, TX (Floyd County)
- Aiken, TX (Shelby County)
- Aikin Grove, TX
- Airport City, TX
- Airport Road Addition, TX
- Airville, TX
- Ajax, TX
- Akron, TX
- Alabama, TX (Houston County)
- Alabama, TX (Trinity County)
- Alameda, TX
- Alamita, TX
- Alamito, TX
- Alamo Alto, TX
- Alamo Beach, TX
- Alamo Heights, TX
- Alamo, TX
- Alanreed, TX
- Alazan, TX
- Alba, TX
- Albany, TX
- Albert, TX
- Albion, TX
- Albuquerque, TX
- Alcedo, TX
- Alcino, TX
- Alco, TX
- Alderbranch, TX
- Aldine, TX (Harris County)
- Aldine, TX (Uvalde County)
- Aldridge, TX (Angelina County)
- Aldridge, TX (Jasper County)
- Aledo, TX
- Aleman, TX
- Alexander, TX
- Aley, TX
- Alford's Bluff
- Alfred, TX
- Algerita, TX
- Algoa, TX
- Alice Southwest, TX
- Alice, TX
- Alief, TX
- Allamoore, TX
- Allen Chapel, TX
- Allen's Chapel, TX
- Allen's Landing, TX