Cities
- Addington Highlands ON
- Airlie ON
- Alcona Beach ON
- Alcona ON
- Alderville ON
- Alexandria Point ON
- Algonquin Highlands ON
- Algonquin Park ON
- Allan ON
- Allan Water ON
- Allenford ON
- Allensville ON
- Allenwood Beach ON
- Allenwood ON
- Allimill ON
- Alport ON
- Amherst Island ON
- Amyot ON
- Anchor Point NL
- Annan ON
- Ansnorveldt ON
- Anten Mills ON
- Apex NU
- Apto ON
- Arden ON
- Ardmore Beach ON
- Ardoch ON
- Ardtrea ON
- Arlington ON
- Armstrong s Point ON
- Aroland ON
- Ashburn ON
- Aspdin ON
- Athlone ON
- Atikup ON
- Auden ON
- Avening ON
- Ayton ON