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What are the largest counties in Michigan?

Wayne County is the largest county in Michigan, with 1,769,038 residents in 2025 (Census PEP). Oakland County (1,288,337) and Macomb County (886,221) come next.

Data as of 2025 · updated

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All 83 ranked Michigan counties

Michigan counties ranked by population
RankCountyResidents 2025Change 2020–25
1Wayne County1,769,038−1.2%
2Oakland County1,288,337+1.2%
3Macomb County886,221+0.7%
4Kent County675,232+2.5%
5Genesee County401,093−1.1%
6Washtenaw County370,214−0.4%
7Ottawa County308,459+3.9%
8Ingham County289,709+1.7%
9Kalamazoo County263,795+0.8%
10Livingston County197,315+1.7%
11Saginaw County187,688−1.1%
12Muskegon County177,901+1.8%
13St. Clair County160,486+0.1%
14Jackson County159,552−0.4%
15Monroe County156,004+0.7%
16Berrien County152,444−1.3%
17Calhoun County133,408−0.6%
18Allegan County123,188+2.1%
19Eaton County109,581+0.4%
20Bay County102,123−1.6%
21Lenawee County97,779−1.6%
22Grand Traverse County96,729+1.4%
23Lapeer County89,516+1.0%
24Midland County83,754+0.3%
25Clinton County80,432+1.6%
26Van Buren County76,071+0.7%
27Montcalm County69,406+4.1%
28Marquette County68,064+2.3%
29Shiawassee County67,681−0.5%
30Ionia County66,557−0.5%
31Isabella County64,691+0.3%
32Barry County63,991+2.2%
33St. Joseph County60,968+0.1%
34Tuscola County52,680−1.2%
35Cass County51,677+0.2%
36Newaygo County51,622+3.1%
37Branch County45,993+2.5%
38Hillsdale County45,738−0.0%
39Mecosta County42,320+4.7%
40Gratiot County41,190−1.1%
41Sanilac County40,083−1.0%
42Houghton County37,842+1.6%
43Delta County36,582−0.8%
44Chippewa County36,081−1.9%
45Wexford County34,445+2.3%
46Emmet County33,775−1.0%
47Clare County31,543+2.3%
48Huron County30,530−2.7%
49Mason County29,040+0.0%
50Alpena County28,853−0.1%
51Oceana County27,177+1.7%
52Otsego County26,080+3.8%
53Gladwin County26,077+2.8%
54Charlevoix County26,036−0.0%
55Dickinson County25,827−0.3%
56Cheboygan County25,793+0.9%
57Manistee County25,656+2.3%
58Iosco County25,266+0.3%
59Antrim County24,698+5.3%
60Roscommon County23,914+1.9%
61Osceola County23,516+2.7%
62Leelanau County22,982+3.0%
63Menominee County22,941−2.2%
64Ogemaw County21,121+1.6%
65Kalkaska County18,693+4.3%
66Benzie County18,568+3.1%
67Missaukee County15,274+1.4%
68Arenac County15,068+0.5%
69Gogebic County14,285−0.4%
70Crawford County13,722+5.7%
71Lake County13,182+9.1%
72Presque Isle County13,128+1.0%
73Iron County11,757+1.1%
74Mackinac County11,236+3.8%
75Alcona County10,556+3.7%
76Montmorency County9,842+7.3%
77Oscoda County8,723+6.0%
78Alger County8,641−2.3%
79Schoolcraft County8,187+1.7%
80Baraga County8,169+0.3%
81Luce County6,339−1.1%
82Ontonagon County5,823+0.4%
83Keweenaw County2,186+6.2%

How this is ranked

The Census Bureau's July 1 resident population estimates for 2025, largest first, with the change since 2020. Counties with fewer than 1,000 residents are not ranked. Areas without an estimate for the same year as the others are not ranked.

Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025). Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how ranks and figures are built.

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Questions

What is the largest county in Michigan?

Wayne County is the largest county in Michigan, with 1,769,038 residents in 2025 (Census PEP). Oakland County (1,288,337) and Macomb County (886,221) come next.

How is this ranking calculated?

The Census Bureau's July 1 resident population estimates for 2025, largest first, with the change since 2020. Counties with fewer than 1,000 residents are not ranked. Areas without an estimate for the same year as the others are not ranked.

More rankings for Michigan

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Across the U.S.