Counties in Michigan
Each county page says how cases move there under Michigan's rules, and lists the police agencies that serve it.
83 counties, largest first
- Wayne County1,769,038 people · 49 agencies
- Oakland County1,288,337 people · 59 agencies
- Macomb County886,221 people · 24 agencies
- Kent County675,232 people · 16 agencies
- Genesee County401,093 people · 37 agencies
- Washtenaw County370,214 people · 16 agencies
- Ottawa County308,459 people · 11 agencies
- Ingham County289,709 people · 14 agencies
- Kalamazoo County263,795 people · 17 agencies
- Livingston County197,315 people · 9 agencies
- Saginaw County187,688 people · 25 agencies
- Muskegon County177,901 people · 16 agencies
- St. Clair County160,486 people · 14 agencies
- Jackson County159,552 people · 19 agencies
- Monroe County156,004 people · 11 agencies
- Berrien County152,444 people · 22 agencies
- Calhoun County133,408 people · 12 agencies
- Allegan County123,188 people · 14 agencies
- Eaton County109,581 people · 13 agencies
- Bay County102,123 people · 9 agencies
- Lenawee County97,779 people · 16 agencies
- Grand Traverse County96,729 people · 3 agencies
- Lapeer County89,516 people · 14 agencies
- Midland County83,754 people · 6 agencies
- Clinton County80,432 people · 13 agencies
- Van Buren County76,071 people · 15 agencies
- Montcalm County69,406 people · 13 agencies
- Marquette County68,064 people · 15 agencies
- Shiawassee County67,681 people · 14 agencies
- Ionia County66,557 people · 6 agencies
- Isabella County64,691 people · 6 agencies
- Barry County63,991 people · 9 agencies
- St. Joseph County60,968 people · 10 agencies
- Tuscola County52,680 people · 16 agencies
- Cass County51,677 people · 8 agencies
- Newaygo County51,622 people · 7 agencies
- Branch County45,993 people · 7 agencies
- Hillsdale County45,738 people · 9 agencies
- Mecosta County42,320 people · 5 agencies
- Gratiot County41,190 people · 6 agencies
- Sanilac County40,083 people · 13 agencies
- Houghton County37,842 people · 11 agencies
- Delta County36,582 people · 5 agencies
- Chippewa County36,081 people · 5 agencies
- Wexford County34,445 people · 6 agencies
- Emmet County33,775 people · 6 agencies
- Clare County31,543 people · 6 agencies
- Huron County30,530 people · 14 agencies
- Mason County29,040 people · 4 agencies
- Alpena County28,853 people · 3 agencies
- Oceana County27,177 people · 10 agencies
- Otsego County26,080 people · 5 agencies
- Gladwin County26,077 people · 4 agencies
- Charlevoix County26,036 people · 6 agencies
- Dickinson County25,827 people · 5 agencies
- Cheboygan County25,793 people · 5 agencies
- Manistee County25,656 people · 4 agencies
- Iosco County25,266 people · 5 agencies
- Antrim County24,698 people · 7 agencies
- Roscommon County23,914 people · 8 agencies
- Osceola County23,516 people · 6 agencies
- Leelanau County22,982 people · 6 agencies
- Menominee County22,941 people · 4 agencies
- Ogemaw County21,121 people · 6 agencies
- Kalkaska County18,693 people · 4 agencies
- Benzie County18,568 people · 6 agencies
- Missaukee County15,274 people · 4 agencies
- Arenac County15,068 people · 4 agencies
- Gogebic County14,285 people · 7 agencies
- Crawford County13,722 people · 5 agencies
- Lake County13,182 people · 4 agencies
- Presque Isle County13,128 people · 6 agencies
- Iron County11,757 people · 8 agencies
- Mackinac County11,236 people · 4 agencies
- Alcona County10,556 people · 4 agencies
- Montmorency County9,842 people · 3 agencies
- Oscoda County8,723 people · 2 agencies
- Alger County8,641 people · 3 agencies
- Schoolcraft County8,187 people · 3 agencies
- Baraga County8,169 people · 4 agencies
- Luce County6,339 people · 3 agencies
- Ontonagon County5,823 people · 3 agencies
- Keweenaw County2,186 people · 3 agencies
Population: Census Bureau county population estimates, Vintage 2025 (cc-est2025-alldata), July 1, 2025.