- Acme
- Ada
- Adams
- Addison Township
- Addison
- Adrian
- Adrian Township
- Aetna
- Aetna
- Alabaster
- Alamo
- Albion
- Albion Township
- Algansee
- Algoma
- Allegan
- Allegan Township
- Allen
- Allen Township
- Allen Park
- Allendale
- Alma
- Almena
- Alpena
- Alpena Township
- Alpine
- Alto
- Amber
- Amboy
- Ann Arbor
- Ann Arbor Charter Twp
- Antwerp
- Arcadia
- Arcadia Township
- Arlington
- Ash
- Ashland
- Assyria
- Athens
- Athens Township
- Atlanta
- Au Gres
- Au Gres Township
- Auburn Hills
- Augusta
- Augusta
- Austin