A
- Aberdeen
- Aboushagan Road
- Acadie Siding
- Acadieville
- Acton
- Adams Gulch
- Adamsville
- Addington
- Albert Mines
- Albrights Corner
- Alcida
- Alderwood
- Aldouane
- Allainville
- Allardville
- Allardville East
- Allison
- Alma
- Alma Village
- Alnwick
- Ammon
- Amostown
- Anderson Road
- Andersonville
- Andover
- Anfield
- Anse-Bleue
- Apohaqui
- Arbuckle
- Archibald Settlement
- Argosy
- Argyle
- Armond
- Armstrong Brook
- Aroostook
- Arthurette
- Ashland
- Astle
- Atholville
- Auburnville
- Avondale
- Avondale Road