Ranking of Michigan Counties By Total Voting-age Population (18yrs and over) from Census 2020
Updated on February 22, 2026.
According to the data from the US 2020 Census, as at April 2020, among all the counties in Michigan, Wayne County had the highest voting-age population (18 years and over) (1.38M), followed by Oakland County (1.01M), and Macomb County (701.20K).
The chart below shows the top 10 counties with high voting-age population, and the table below shows the ranking of all Michigan counties based on voting-age population.
You can also see the ranking of counties by population for other states as well as for the whole United States.
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Related Topics: Michigan Census 2020 Topic List.
Data Source: US Census Bureau, 2020 Census.
Ranking of Michigan Counties By Total Voting-age Population from Census 2020
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| Rank | County | Voting-age Population |
|---|---|---|
| 1 | Wayne County | 1376516 |
| 2 | Oakland County | 1013401 |
| 3 | Macomb County | 701202 |
| 4 | Kent County | 502355 |
| 5 | Genesee County | 315909 |
| 6 | Washtenaw County | 303933 |
| 7 | Ingham County | 228152 |
| 8 | Ottawa County | 226068 |
| 9 | Kalamazoo County | 204328 |
| 10 | Livingston County | 152308 |
| 11 | Saginaw County | 148604 |
| 12 | Muskegon County | 136303 |
| 13 | St. Clair County | 127475 |
| 14 | Jackson County | 126350 |
| 15 | Monroe County | 122008 |
| 16 | Berrien County | 121067 |
| 17 | Calhoun County | 103647 |
| 18 | Allegan County | 91395 |
| 19 | Eaton County | 85978 |
| 20 | Bay County | 83217 |
| 21 | Lenawee County | 78518 |
| 22 | Grand Traverse County | 76419 |
| 23 | Lapeer County | 70165 |
| 24 | Midland County | 65392 |
| 25 | Clinton County | 61200 |
| 26 | Van Buren County | 58205 |
| 27 | Marquette County | 53919 |
| 28 | Shiawassee County | 53880 |
| 29 | Montcalm County | 52311 |
| 30 | Ionia County | 52305 |
| 31 | Isabella County | 52028 |
| 32 | Barry County | 48234 |
| 33 | St. Joseph County | 45987 |
| 34 | Tuscola County | 41953 |
| 35 | Cass County | 40513 |
| 36 | Newaygo County | 38748 |
| 37 | Hillsdale County | 35596 |
| 38 | Branch County | 34007 |
| 39 | Gratiot County | 32681 |
| 40 | Sanilac County | 31913 |
| 41 | Mecosta County | 31746 |
| 42 | Chippewa County | 29926 |
| 43 | Houghton County | 29863 |
| 44 | Delta County | 29711 |
| 45 | Emmet County | 27855 |
| 46 | Wexford County | 25894 |
| 47 | Huron County | 25451 |
| 48 | Clare County | 24685 |
| 49 | Alpena County | 23539 |
| 50 | Mason County | 23270 |
| 51 | Charlevoix County | 21255 |
| 52 | Cheboygan County | 21112 |
| 53 | Iosco County | 20906 |
| 54 | Dickinson County | 20796 |
| 55 | Manistee County | 20755 |
| 56 | Oceana County | 20622 |
| 57 | Gladwin County | 20577 |
| 58 | Roscommon County | 20138 |
| 59 | Otsego County | 19904 |
| 60 | Antrim County | 19314 |
| 61 | Menominee County | 19154 |
| 62 | Leelanau County | 18601 |
| 63 | Osceola County | 17525 |
| 64 | Ogemaw County | 16916 |
| 65 | Benzie County | 14838 |
| 66 | Kalkaska County | 14327 |
| 67 | Arenac County | 12327 |
| 68 | Gogebic County | 12007 |
| 69 | Missaukee County | 11632 |
| 70 | Presque Isle County | 10985 |
| 71 | Crawford County | 10653 |
| 72 | Lake County | 10193 |
| 73 | Iron County | 9606 |
| 74 | Mackinac County | 9064 |
| 75 | Alcona County | 8821 |
| 76 | Montmorency County | 7765 |
| 77 | Alger County | 7442 |
| 78 | Oscoda County | 6731 |
| 79 | Baraga County | 6715 |
| 80 | Schoolcraft County | 6651 |
| 81 | Ontonagon County | 5147 |
| 82 | Luce County | 4265 |
| 83 | Keweenaw County | 1728 |
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