Ranking of Iowa Counties By Percentage of Population that are Non-Hispanic Asian in 2015

Updated on June 18, 2025.

Based on the US Census Vintage data estimates, in 2015, among all Iowa counties, Jefferson County had the highest percentage of its population who identified their ethnicity as Non-Hispanic Asian (12.19%), followed by Buena Vista County (8.81%), and Story County (7.99%).

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 Asian Population in 2015

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 Asian in 2015

Jefferson

Buena Vista

Story

Johnson

Polk

Dallas

Louisa

Marshall

Scott

Woodbury

Ranking of Iowa Counties By Percentage of Pop. that are Non-Hispanic Asian in 2015

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Rank	County	% of County Population
1	Jefferson County	12.19
2	Buena Vista County	8.81
3	Story County	7.99
4	Johnson County	6.35
5	Polk County	4.45
6	Dallas County	4.38
7	Louisa County	4
8	Marshall County	3.16
9	Scott County	2.67
10	Woodbury County	2.64
11	Linn County	2.42
12	Henry County	2.4
13	Hamilton County	2.17
14	Black Hawk County	2.14
15	Crawford County	1.87
15	Poweshiek County	1.87
16	Marion County	1.39
17	Mahaska County	1.38
18	Dubuque County	1.31
18	Floyd County	1.31
19	Muscatine County	1.12
20	Webster County	1.11
21	Bremer County	1.05
22	Winneshiek County	1.03
23	Cerro Gordo County	0.99
24	Fayette County	0.94
25	Winnebago County	0.93
26	Page County	0.91
27	Sioux County	0.9
28	Des Moines County	0.84
28	Wapello County	0.84
29	O'Brien County	0.8
30	Pottawattamie County	0.76
31	Adams County	0.75
32	Palo Alto County	0.73
33	Clay County	0.71
34	Decatur County	0.7
35	Osceola County	0.68
36	Butler County	0.65
36	Hardin County	0.65
37	Plymouth County	0.63
38	Clinton County	0.6
38	Union County	0.6
39	Cedar County	0.59
39	Jasper County	0.59
39	Jones County	0.59
39	Warren County	0.59
40	Ida County	0.57
40	Madison County	0.57
41	Dickinson County	0.56
41	Emmet County	0.56
41	Lee County	0.56
41	Worth County	0.56
42	Van Buren County	0.55
43	Cherokee County	0.54
43	Hancock County	0.54
43	Kossuth County	0.54
44	Clarke County	0.51
44	Washington County	0.51
45	Appanoose County	0.49
45	Audubon County	0.49
45	Wayne County	0.49
46	Boone County	0.47
46	Buchanan County	0.47
47	Adair County	0.46
47	Greene County	0.46
48	Carroll County	0.45
49	Franklin County	0.44
49	Monroe County	0.44
50	Mills County	0.43
50	Wright County	0.43
51	Ringgold County	0.42
51	Shelby County	0.42
52	Mitchell County	0.4
52	Taylor County	0.4
53	Iowa County	0.39
53	Pocahontas County	0.39
54	Benton County	0.36
54	Humboldt County	0.36
54	Jackson County	0.36
55	Cass County	0.35
56	Allamakee County	0.33
56	Harrison County	0.33
56	Tama County	0.33
57	Chickasaw County	0.32
57	Delaware County	0.32
57	Fremont County	0.32
57	Guthrie County	0.32
57	Montgomery County	0.32
57	Sac County	0.32
58	Calhoun County	0.3
59	Grundy County	0.29
59	Howard County	0.29
60	Clayton County	0.27
60	Davis County	0.27
60	Keokuk County	0.27
60	Lucas County	0.27
60	Monona County	0.27
61	Lyon County	0.26