Ranking of Iowa Counties By Percentage of Population with Canadian Ancestry in 2021

Updated on April 16, 2025.

Based on the US Census ACS-5Yrs estimates, in 2021, there were 2.71K people in Iowa with Canadian ancestry (0.09% of Iowa population). Among all Iowa counties, Wayne County had the highest percentage of its population with Canadian ancestry (0.45%), followed by Howard County (0.31%), and Jefferson County (0.29%).

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

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

Data Source: US Census Bureau.
Ranking of Iowa Counties By Percentage of Population with Canadian Ancestry in 2021
Wayne County
Howard County
Jefferson County
Sac County
Hardin County
Buena Vista County
Cedar County
Poweshiek County
Warren County
Des Moines County
Ranking of Iowa Counties By Percentage of Population with Canadian Ancestry in 2021
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Rank County Percentage of Pop. (%)
1 Wayne County 0.45
2 Howard County 0.31
3 Jefferson County 0.29
4 Sac County 0.25
5 Hardin County 0.22
6 Buena Vista County 0.21
6 Cedar County 0.21
7 Poweshiek County 0.20
8 Warren County 0.19
9 Des Moines County 0.18
9 Fremont County 0.18
9 Story County 0.18
10 Cerro Gordo County 0.16
10 Emmet County 0.16
10 Iowa County 0.16
11 Linn County 0.15
12 Clayton County 0.14
12 Keokuk County 0.14
13 Chickasaw County 0.13
13 Mahaska County 0.13
13 Washington County 0.13
14 Franklin County 0.12
14 Sioux County 0.12
15 Clay County 0.11
15 Floyd County 0.11
15 Hamilton County 0.11
15 Johnson County 0.11
16 Decatur County 0.10
17 Clinton County 0.09
17 Monroe County 0.09
17 Polk County 0.09
17 Scott County 0.09
17 Wapello County 0.09
17 Woodbury County 0.09
18 Dallas County 0.08
18 Dickinson County 0.08
18 Mills County 0.08
18 Webster County 0.08
19 Adair County 0.07
19 Hancock County 0.07
20 Carroll County 0.06
20 Fayette County 0.06
20 Harrison County 0.06
20 Ida County 0.06
21 Crawford County 0.05
21 Marion County 0.05
21 Marshall County 0.05
21 Muscatine County 0.05
21 Tama County 0.05
21 Worth County 0.05
22 Benton County 0.04
22 Black Hawk County 0.04
22 O'Brien County 0.04
22 Plymouth County 0.04
22 Pottawattamie County 0.04
22 Ringgold County 0.04
22 Union County 0.04
23 Appanoose County 0.03
23 Bremer County 0.03
23 Dubuque County 0.03
23 Lee County 0.03
23 Montgomery County 0.03
23 Page County 0.03
24 Greene County 0.02
24 Grundy County 0.02
24 Humboldt County 0.02
24 Jackson County 0.02
24 Jasper County 0.02
24 Monona County 0.02
24 Taylor County 0.02
25 Cass County 0.01
26 Boone County 0.004