- Arbor
- Arbor Glen
- Arborlea
- Arbors at Providence
- Arbuckle
- Arcadia
- Arcadia at Inverness Glen
- Arch Rock
- Arch Spring
- Archbald
- Arcola
- Ardara
- Arden
- Arden Mines
- Ardenheim
- Ardmore
- Ardmore Park
- Ardsley
- Arendtsville
- Arensburg
- Argentine
- Argus
- Ariosa
- Aristes
- Arlingham
- Arlington
- Arlington Heights
- Arlington Knolls
- Arlington Park
- Armagh