- Acme
- Adon
- Afton
- Air Base Acres
- Airport Road
- Aladdin
- Albany
- Albin
- Alcova
- Alcova Po
- Allendale
- Almy
- Alpine
- Alpine Junction
- Alpine Northeast
- Alpine Northwest
- Alta
- Altamont
- Altvan
- Alva
- Ammon
- Antelope
- Antelope Hills
- Antelope Valley
- Antelope Valley-Crestview
- Arapahoe
- Arcola
- Arizona Island
- Arlington
- Arminto