Ranking of Michigan Counties By Percentage of Population with Unclassified Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 2.15M people in Michigan with Unclassified ancestry (21.42% of Michigan population). Among all Michigan counties, Montcalm County had the highest percentage of its population with Unclassified ancestry (38.71%), followed by Osceola County (35.50%), and Gladwin County (34.92%).

The chart and table below shows the top 10 counties with high percentage of its population having Unclassified ancestry.

You can see similar information for other states and for other ancestry groups in Michigan.

Data Source: US Census Bureau.
Ranking of Michigan Counties By Percentage of Population with Unclassified Ancestry in 2021
Montcalm County
Osceola County
Gladwin County
Muskegon County
Cass County
Wexford County
Lake County
Hillsdale County
Newaygo County
Mecosta County
Ranking of Michigan Counties By Percentage of Population with Unclassified Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Montcalm County 38.71
2 Osceola County 35.50
3 Gladwin County 34.92
4 Muskegon County 34.44
5 Cass County 34.34
6 Wexford County 34.05
7 Lake County 33.88
8 Hillsdale County 33.67
9 Newaygo County 33.14
10 Mecosta County 31.79
11 Gratiot County 31.63
12 Tuscola County 30.38
13 Calhoun County 30.27
14 Benzie County 30.01
15 Ogemaw County 29.99
16 Clare County 29.94
17 Oceana County 29.25
18 Arenac County 29.07
19 Barry County 28.74
20 Mason County 28.27
21 Berrien County 28.03
22 Bay County 27.77
23 Midland County 27.59
24 Ionia County 27.16
25 Sanilac County 27.10
26 Lapeer County 26.99
27 Manistee County 26.72
28 Oscoda County 26.59
29 Van Buren County 26.47
30 Menominee County 26.21
31 Branch County 25.78
32 Monroe County 25.37
33 Isabella County 25.33
34 Iosco County 25.16
35 St. Joseph County 25.07
36 Eaton County 25.04
37 Cheboygan County 24.97
38 Shiawassee County 24.85
39 Chippewa County 24.84
40 Allegan County 24.76
40 Luce County 24.76
41 Delta County 24.58
42 Ingham County 24.45
43 Kalamazoo County 24.42
44 Alger County 24.41
45 St. Clair County 24.19
46 Roscommon County 24.16
47 Schoolcraft County 23.78
48 Kalkaska County 23.65
49 Grand Traverse County 23.50
50 Missaukee County 23.46
51 Clinton County 23.11
52 Mackinac County 23.04
53 Lenawee County 22.85
54 Otsego County 22.11
55 Baraga County 21.63
56 Marquette County 21.55
57 Jackson County 21.26
57 Montmorency County 21.26
58 Charlevoix County 21.24
59 Genesee County 21.14
60 Huron County 20.91
61 Ottawa County 20.88
62 Crawford County 20.85
63 Saginaw County 20.56
64 Kent County 20.53
65 Dickinson County 20.51
66 Antrim County 20.46
67 Leelanau County 20.08
68 Alpena County 20.01
69 Presque Isle County 19.96
70 Livingston County 19.56
71 Emmet County 19.18
72 Houghton County 18.80
73 Washtenaw County 18.40
74 Alcona County 17.70
75 Macomb County 17.50
76 Oakland County 17.23
77 Wayne County 16.84
78 Gogebic County 15.94
79 Keweenaw County 15.16
80 Iron County 13.89
81 Ontonagon County 11.88