Rock County, Wisconsin Population By Ethnicity in Census 2020

Updated on April 5, 2023.

According to the data from the US 2020 decennial Census, in April 2020, among Rock County, WI population of 163,687 people, 79.30% (129,796) identified their ethnicity as Non-Hispanic - White Alone, 4.92% (8,060) identified their ethnicity as Non-Hispanic - Black or African American Alone, and 4.31% (7,050) identified their ethnicity as Non-Hispanic - Two Or More Races.

The first chart below shows the population by ethnicity and the second chart shows the percentage of the 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 County, WI Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Non-Hispanic - Two or More Races
Hispanic - Some Other Race Alone
Hispanic - Two or More Races
Hispanic - White Alone
Non-Hispanic - Asian Alone
Percentage of Rock County, WI Population By Ethnicity in Census 2020
Non-Hispanic - White Alone
Non-Hispanic - Black Alone
Non-Hispanic - Two or More Races
Hispanic - Some Other Race Alone
Hispanic - Two or More Races
Hispanic - White Alone
Non-Hispanic - Asian Alone
Rock County, WI Population By Ethnicity in Census 2020
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Ethnicity Population % of County Population
Non-Hispanic - White Alone 129796 79.30
Non-Hispanic - Black or African American Alone 8060 4.92
Non-Hispanic - Two Or More Races 7050 4.31
Hispanic - Some Other Race Alone 6934 4.24
Hispanic - Two Or More Races 4753 2.90
Hispanic - White Alone 3311 2.02
Non-Hispanic - Asian Alone 2022 1.24
Non-Hispanic - Some Other Race Alone 523 0.32
Hispanic - American Indian and Alaska Native Alone 492 0.30
Non-Hispanic - American Indian and Alaska Native Alone 386 0.24
Hispanic - Black or African American Alone 251 0.15
Non-Hispanic - Native Hawaiian And Pacific Islander Alone 50 0.03
Hispanic - Asian Alone 37 0.02
Hispanic - Native Hawaiian And Pacific Islander Alone 22 0.01