Rock, Wisconsin Voting-age Population By Ethnicity in Census 2020

Updated on February 22, 2026.

According to the data from the US 2020 decennial Census, in April 2020, among Rock, WI population of 126,282 people, 83.04% of them (104,869 people) identified their ethnicity as Non-Hispanic - White Alone, 4.46% of them (5,629 people) identified their ethnicity as Non-Hispanic - Black or African American Alone, and 3.63% of them (4,587 people) identified their ethnicity as Hispanic - Some Other Race Alone.

The first chart below shows the voting-age population by ethnicity and the second chart shows the percentage of the voting-age population for each ethnicity. You can also find the information in a table below.

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

Rock, WI Voting-age Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Hispanic - Some Other Race Alone
Non-Hispanic - Two or More Races
Hispanic - Two or More Races
Hispanic - White Alone
Non-Hispanic - Asian Alone
Percentage of Rock, WI Voting-age Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Hispanic - Some Other Race Alone
Non-Hispanic - Two or More Races
Hispanic - Two or More Races
Hispanic - White Alone
Non-Hispanic - Asian Alone
Rock, WI Voting-age Population By Ethnicity 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 or African American 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 and Alaska Native Alone 332 0.26
Non-Hispanic - American Indian and Alaska Native Alone 316 0.25
Hispanic - Black or African American Alone 112 0.09
Non-Hispanic - Native Hawaiian And Pacific Islander Alone 49 0.04
Hispanic - Asian Alone 22 0.02
Hispanic - Native Hawaiian And Pacific Islander Alone 11 0.01