Rock, Wisconsin Voting-age Population By Race and Ethnicity from Census 2020

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, the 126.28K voting-age population of Rock, WI residents comprised of 9.54K residents who identified as Hispanic or Latino (7.56%), and 116.74K residents who identified as Non-Hispanic (92.44%).

Race: The White Alone voting-age population was the largest racial group in Rock, WI, with a voting-age population of 106.72K (84.51%). The Two Or More Races voting-age population was the second largest racial group in Rock, WI, with a voting-age population of 6.52K (5.16%). The Black or African American Alone voting-age population was the third largest racial group in Rock, WI, with a voting-age population of 5.74K (4.55%). The smallest racial group in Rock, WI was Native Hawaiian And Pacific Islander Alone with a voting-age population of 60 (0.05%).

Ethnicity: The Non-Hispanic - White Alone voting-age population was the largest ethnic group in Rock, WI, with a voting-age population of 104.87K (83.04%). The Non-Hispanic - Black Alone voting-age population was the second largest ethnic group in Rock, WI, with a voting-age population of 5.63K (4.46%). The Hispanic - Some Other Race Alone voting-age population was the third largest ethnic group in Rock, WI, with a voting-age population of 4.59K (3.63%). The smallest ethnic group in Rock, WI was Hispanic - Native Hawaiian & Pac. Islander with a voting-age population of 11 (0.01%).

The charts and tables below shows the voting-age population and percentage of each racial group and ethnicity group in Rock, Wisconsin from the 2020 decennial census.

You can see similar information for other Wisconsin counties and also for the state of Wisconsin.

Rock, WI Voting-age Hispanics and Non Hispanics Population in Census 2020
Total Voting-age Population:
Rock, WI Voting-age Racial Groups in Census 2020
Total Voting-age Population:
Rock, WI Voting-age Ethnicity Groups in Census 2020
Total Voting-age Population:
Rock, WI Voting-age Population of Racial Groups in Census 2020
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Race Voting-age Population % of County Voting-age Population
Black or African American Alone 5741 4.55
White Alone 106718 84.51
American Indian and Alaska Native Alone 648 0.51
Asian Alone 1634 1.29
Native Hawaiian And Pacific Islander Alone 60 0.05
Some Other Race Alone 4965 3.93
Two Or More Races 6516 5.16
Rock, WI Voting-age Population of Ethnicity Groups in Census 2020
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Ethnicity Voting-age Population % of County Voting-age Population
Non-Hispanic - White Alone 104869 83.04
Non-Hispanic - Black Alone 5629 4.46
Hispanic - Some Other Race Alone 4587 3.63
Non-Hispanic - Two or More Races 3885 3.08
Hispanic - Two or More Races 2631 2.08
Hispanic - White Alone 1849 1.46
Non-Hispanic - Asian Alone 1612 1.28
Non-Hispanic - Some Other Race Alone 378 0.30
Hispanic - American Indian & Alaska Native 332 0.26
Non-Hispanic - American Indian & Alaska Native 316 0.25
Hispanic - Black Alone 112 0.09
Non-Hispanic - Native Hawaiian & Pac. Islander 49 0.04
Hispanic - Asian Alone 22 0.02
Hispanic - Native Hawaiian & Pac. Islander 11 0.01