Communities
- Antioch, TX (Stonewall County)
- Antioch, TX (Trinity County)
- Antioch, TX (Van Zandt County)
- Anton, TX
- Apache Ranch, TX
- Apex, TX
- Apolonia, TX
- Apple Springs, TX
- Appleby, TX
- Applegate, TX
- Aquilla, TX
- Arah, TX
- Aransas City, TX
- Aransas Pass, TX
- Aransas, TX
- Arbala, TX
- Arbor Grove, TX
- Arcade, TX
- Arcadia, TX (Galveston County)
- Arcadia, TX (Shelby County)
- Archer City, TX
- Arcola, TX
- Arden, TX
- Argenta, TX
- Argo, TX
- Argyle, TX
- Ariola, TX
- Arispe, TX
- Arkansas City, TX
- Arleston, TX
- Arlie, TX
- Arlington, TX
- Armour, TX
- Armstrong, TX (Bell County)
- Armstrong, TX (Kenedy County)
- Arneckeville, TX
- Arnett, TX (Coryell County)
- Arnett, TX (Hockley County)
- Arney, TX
- Arno, TX
- Arnottville, TX
- Arp, TX
- Arrowhead Shores, TX
- Arroyo Alto, TX
- Arroyo City, TX
- Arroyo Colorado Estates, TX
- Art, TX
- Artesia Wells, TX
- Arthur City, TX
- Arvana, TX