- Abington
- Achenbach
- Addison
- Allentown
- Allingtown
- Allyn Point
- Almyville
- Alsop Corner
- Amesville
- Amston
- Andover
- Andrews Island
- Andrews Island
- Ansonia
- Aqua Vista
- Arnolds
- Ashford
- Aspetuck
- Atchison Cove
- Attawan Beach
- Attawaugan
- Atwoodville
- Augerville
- Autumn HIll
- Avery Corner
- Avery Corner
- Avon
- Avon Park North
- Avon Park South