Michigan counties

Every county in Michigan, with the ZIP codes recorded in each. Pick one to see its full ZIP code list.

counties: 83
ZIP codes: 1,159

All Michigan counties

Every Michigan county with the number of ZIP codes it holds and the city holding the most of them.
County	ZIP codes	Largest city
Alcona County	9	Barton City
Alger County	10	Au Train
Allegan County	17	Allegan
Alpena County	5	Alpena
Antrim County	9	Alba
Arenac County	6	Au Gres
Baraga County	5	Baraga
Barry County	9	Cloverdale
Bay County	11	Bay City
Benzie County	7	Benzonia
Berrien County	25	Benton Harbor
Branch County	6	Bronson
Calhoun County	15	Battle Creek
Cass County	7	Cassopolis
Charlevoix County	7	Bay Shore
Cheboygan County	10	Afton
Chippewa County	18	Kincheloe
Clare County	5	Clare
Clinton County	10	Bath
Crawford County	3	Grayling
Delta County	10	Bark River
Dickinson County	11	Channing
Eaton County	12	Lansing
Emmet County	10	Alanson
Genesee County	36	Flint
Gladwin County	4	Beaverton
Gogebic County	6	Bessemer
Grand Traverse County	12	Traverse City
Gratiot County	15	Alma
Hillsdale County	16	Allen
Houghton County	17	Atlantic Mine
Huron County	14	Bad Axe
Ingham County	35	Lansing
Ionia County	13	Belding
Iosco County	8	Tawas City
Iron County	7	Alpha
Isabella County	8	Mount Pleasant
Jackson County	19	Jackson
Kalamazoo County	24	Kalamazoo
Kalkaska County	3	Kalkaska
Kent County	46	Grand Rapids
Keweenaw County	4	Ahmeek
Lake County	6	Baldwin
Lapeer County	12	Almont
Leelanau County	9	Cedar
Lenawee County	19	Addison
Livingston County	12	Howell
Luce County	2	Mc Millan
Mackinac County	10	Cedarville
Macomb County	41	Warren
Manistee County	10	Arcadia
Marquette County	13	Arnold
Mason County	6	Custer
Mecosta County	9	Barryton
Menominee County	13	Carney
Midland County	11	Midland
Missaukee County	4	Falmouth
Monroe County	18	Monroe
Montcalm County	18	Carson City
Montmorency County	3	Atlanta
Muskegon County	15	Muskegon
Newaygo County	7	Fremont
Oakland County	87	Farmington
Oceana County	8	Hart
Ogemaw County	6	Alger
Ontonagon County	9	Bergland
Osceola County	7	Evart
Oscoda County	4	Comins
Otsego County	6	Gaylord
Ottawa County	20	Holland
Presque Isle County	6	Hawks
Roscommon County	6	Higgins Lake
Saginaw County	23	Saginaw
Sanilac County	17	Applegate
Schoolcraft County	5	Cooks
Shiawassee County	12	Bancroft
St. Clair County	23	Port Huron
St. Joseph County	10	Burr Oak
Tuscola County	14	Akron
Van Buren County	15	Bangor
Washtenaw County	19	Ann Arbor
Wayne County	94	Detroit
Wexford County	6	Boon

Scope every county-equivalent recorded in Michigan. Source Census 2024 county Gazetteer (2024 Gazetteer) and GeoNames US postal codes (2026-07 postal dump). Updated 15 July 2026. Names and boundaries follow the Census Bureau's current county-equivalent set, not the MI postal source's older names.