The state of Michigan has a total of 83 counties. Wayne County is the oldest (founded in 1815), while Dickinson County is the youngest (established in 1891).

Wayne County is the most populous, with a population of 1,820,584. Keweenaw County (15,452 km2) has the largest land area, while Cass County has the smallest (1,316 km2).

Please find a list of all Michigan counties sorted alphabetically below.

• Alcona County, MI
• Alger County, MI
• Allegan County, MI
• Alpena County, MI
• Antrim County, MI
• Arenac County, MI
• Baraga County, MI
• Barry County, MI
• Bay County, MI
• Benzie County, MI
• Berrien County, MI
• Branch County, MI
• Calhoun County, MI
• Cass County, MI
• Charlevoix County, MI
• Cheboygan County, MI
• Chippewa County, MI
• Clare County, MI
• Clinton County, MI
• Crawford County, MI
• Delta County, MI
• Dickinson County, MI
• Eaton County, MI
• Emmet County, MI
• Genesee County, MI
• Gladwin County, MI
• Gogebic County, MI
• Grand Traverse County, MI
• Gratiot County, MI
• Hillsdale County, MI
• Houghton County, MI
• Huron County, MI
• Ingham County, MI
• Ionia County, MI
• Iosco County, MI
• Iron County, MI
• Isabella County, MI
• Jackson County, MI
• Kalamazoo County, MI
• Kalkaska County, MI
• Kent County, MI
• Keweenaw County, MI
• Lake County, MI
• Lapeer County, MI
• Leelanau County, MI
• Lenawee County, MI
• Livingston County, MI
• Luce County, MI
• Mackinac County, MI
• Macomb County, MI
• Manistee County, MI
• Marquette County, MI
• Mason County, MI
• Mecosta County, MI
• Menominee County, MI
• Midland County, MI
• Missaukee County, MI
• Monroe County, MI
• Montcalm County, MI
• Montmorency County, MI
• Muskegon County, MI
• Newaygo County, MI
• Oakland County, MI
• Oceana County, MI
• Ogemaw County, MI
• Ontonagon County, MI
• Osceola County, MI
• Oscoda County, MI
• Otsego County, MI
• Ottawa County, MI
• Presque Isle County, MI
• Roscommon County, MI
• Saginaw County, MI
• Saint Clair County, MI
• Saint Joseph County, MI
• Sanilac County, MI
• Schoolcraft County, MI
• Shiawassee County, MI
• Tuscola County, MI
• Van Buren County, MI
• Washtenaw County, MI
• Wayne County, MI
• Wexford County, MI