A
- Abbottstown
- Adamsburg
- Adamstown
- Addison
- Akron
- Alba
- Albion
- Alburtis
- Aldan
- Alexandria
- Allenport
- Ambler
- Ambridge
- Apollo
- Applewold
- Archbald
- Arendtsville
- Armagh
- Arona
- Ashland
- Ashley
- Ashville
- Aspinwall
- Atglen
- Athens
- Atwood
- Auburn
- Austin
- Avalon
- Avis
- Avoca
- Avondale
- Avonmore
Read more about this topic: List Of Towns And Boroughs In Pennsylvania