Ranking of Iowa Counties By Percentage of Population that are Non-Hispanic White in 2017

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2017, among all Iowa counties, Grundy County had the highest percentage of its population who identified their ethnicity as Non-Hispanic White (97.02%), followed by Davis County (96.91%), and Mitchell County (96.9%).

The chart below shows the top 10 counties, and the table below shows the ranking of all Iowa counties.

You can see similar ranking information for other racial and ethnicity groups in the United States.

You can also see similar information for other states, and also the ranking of all counties in the United States.

You may also be interested in:
Ranking of Iowa Counties By Non-Hispanic White Population in 2017

Related Topics: Iowa Census Vintage Data Topic List.

Data Source: US Census Bureau (Vintage).

See this for other years:

Ranking of Iowa Counties By Percentage of Pop. that are Non-Hispanic White in 2017

Grundy

Davis

Mitchell

Adams

Audubon

Delaware

Howard

Butler

Van Buren

Keokuk

Ranking of Iowa Counties By Percentage of Pop. that are Non-Hispanic White in 2017

0 of 0

Rank	County	% of County Population
1	Grundy County	97.02
2	Davis County	96.91
3	Mitchell County	96.9
4	Adams County	96.64
5	Audubon County	96.58
6	Delaware County	96.55
7	Howard County	96.51
8	Butler County	96.45
9	Van Buren County	96.42
10	Keokuk County	96.4
11	Lucas County	96.36
12	Benton County	96.32
13	Buchanan County	96.22
14	Harrison County	96.17
15	Wayne County	96.1
16	Adair County	96.03
17	Clayton County	95.98
18	Ida County	95.73
19	Dickinson County	95.65
20	Chickasaw County	95.64
21	Lyon County	95.58
22	Cedar County	95.54
23	Ringgold County	95.51
24	Jackson County	95.3
25	Iowa County	95.24
26	Madison County	95.23
27	Appanoose County	95.22
28	Cass County	95.18
29	Winneshiek County	95.17
30	Sac County	95.14
31	Bremer County	95.09
32	Guthrie County	95.01
33	Carroll County	94.89
34	Fremont County	94.88
35	Monona County	94.74
36	Shelby County	94.68
37	Greene County	94.67
38	Marion County	94.63
39	Kossuth County	94.61
40	Calhoun County	94.36
41	Monroe County	94.31
42	Boone County	94.28
43	Warren County	94.23
44	Worth County	94.21
45	Mills County	94.08
46	Fayette County	93.98
47	Union County	93.91
48	Jones County	93.77
49	Jasper County	93.69
50	Montgomery County	93.66
51	Clay County	93.46
52	Cherokee County	93.44
52	Humboldt County	93.44
53	Hancock County	93.32
54	Palo Alto County	93.26
55	Mahaska County	93.03
56	Pocahontas County	92.83
57	Decatur County	92.71
58	O'Brien County	92.52
59	Hardin County	92.11
60	Plymouth County	91.85
61	Floyd County	91.56
62	Poweshiek County	91.51
63	Winnebago County	91.34
64	Page County	91.1
65	Clinton County	90.99
66	Washington County	90.95
67	Lee County	90.81
68	Cerro Gordo County	90.57
69	Dubuque County	90.52
70	Allamakee County	90.51
71	Taylor County	90.2
72	Osceola County	89.39
73	Hamilton County	89.38
74	Henry County	88.17
75	Pottawattamie County	87.6
76	Emmet County	87.29
77	Des Moines County	87.27
78	Sioux County	87.1
79	Webster County	86.76
80	Linn County	85.91
81	Wright County	85.63
82	Dallas County	85.56
83	Franklin County	85.13
84	Story County	83.79
85	Wapello County	82.44
86	Clarke County	82.31
87	Jefferson County	81.15
88	Black Hawk County	81.11
89	Tama County	80.69
90	Scott County	79.94
91	Johnson County	78.3
92	Louisa County	78.23
93	Polk County	77.6
94	Muscatine County	77.16
95	Woodbury County	73.3
96	Marshall County	70.62
97	Crawford County	65.86
98	Buena Vista County	59.02