Rock County, Wisconsin Population By Race in Census 2020

Updated on March 15, 2023.

According to the data from the US 2020 decennial Census, in April 2020, among Rock County, WI population of 163,687 people, 81.32% (133,107) identified their race as White Alone, 7.21% (11,803) identified their race as Two Or More Races, and 5.08% (8,311) identified their race as Black or African American Alone.

The first chart below shows the population by race and the second chart shows the percentage of the population for each race. 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 Race in Census 2020
White Alone
Two Or More Races
Black or African American Alone
Some Other Race Alone
Asian Alone
American Indian and Alaska Native Alone
Native Hawaiian And Pacific Islander Alone
Percentage of Rock County, WI Population By Race in Census 2020
White Alone
Two Or More Races
Black or African American Alone
Some Other Race Alone
Asian Alone
American Indian and Alaska Native Alone
Native Hawaiian And Pacific Islander Alone
Rock County, WI Population By Race in Census 2020
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Race Population % of County Population
Black or African American Alone 8311 5.08
White Alone 133107 81.32
American Indian and Alaska Native Alone 878 0.54
Asian Alone 2059 1.26
Native Hawaiian And Pacific Islander Alone 72 0.04
Some Other Race Alone 7457 4.56
Two Or More Races 11803 7.21