A
- Aberdeen
- Abington
- Accord
- Acoaxet
- Acorn Terrace
- Acton
- Acushnet
- Acushnet Center
- Adams
- Adamsdale
- Adamsville
- Agawam
- Alander
- Aldrich Mills
- Alford
- Algerie Four Corners
- Algers Corner
- Alms House
- Amesbury
- Amherst
- Amherst Center
- Andover
- Annisquam
- Arlington
- Arnoldville
- Ashburnham
- Ashby
- Ashcroft
- Ashdod
- Ashfield
- Ashland
- Ashley Heights
- Ashleyville
- Assinippi
- Assonet
- Athol
- Athol Junction
- Atlantic
- Attleboro
- Auburn
- Auburndale
- Auburnville
- Avon
- Axtell Corner
- Ayer
- Ayers Village