Population By Race and Ethnicity in Rock County, WI in 2010

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2010, the 160,261 population of Rock County, Wisconsin comprised of 12,133 people who identified as Hispanic (7.57%), and 148,128 people who identified as Non-Hispanic (92.43%).

Race: The White Alone population was the largest racial group in Rock County, Wisconsin with a population of 146,310 (91.3%); Black or African American Alone population was the second largest racial group with a population of 8,216 (5.13%); and Two Or More Races was the third largest racial group with a population of 3,174 (1.98%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Rock County, Wisconsin in 2010, with a population of 135,571 (84.59%); the second largest ethnic group was White Alone - Hispanic with a population of 10,739 (6.7%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 7,767 (4.85%).

The charts and tables below shows the population and percentage of each racial and ethnicity group in Rock, Wisconsin.

You can find similar information for other Wisconsin counties, and for Wisconsin.

See this for other years:
Hispanics and Non Hispanics in Rock County, WI in 2010
Total Population:
Race in Rock County, WI in 2010
Total Population:
Ethnicity in Rock County, WI in 2010
Total Population:
Population By Race in Rock , WI in 2010
Race Population Percentage
Black or African American Alone 8,216 5.13%
White Alone 146,310 91.3%
American Indian and Alaska Native Alone 796 0.5%
Asian Alone 1,679 1.05%
Native Hawaiian And Pacific Islander Alone 86 0.05%
Two Or More Races 3,174 1.98%
Population By Ethnicity in Rock , WI in 2010
Ethnicity Population Percentage
Black or African American Alone - Hispanic 449 0.28%
White Alone - Hispanic 10,739 6.7%
American Indian and Alaska Native Alone - Hispanic 411 0.26%
Asian Alone - Hispanic 58 0.04%
Native Hawaiian And Pacific Islander Alone - Hispanic 48 0.03%
Two Or More Races - Hispanic 428 0.27%
Black or African American Alone - Non Hispanic 7,767 4.85%
White Alone - Non Hispanic 135,571 84.59%
American Indian and Alaska Native Alone - Non Hispanic 385 0.24%
Asian Alone - Non Hispanic 1,621 1.01%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 38 0.02%
Two Or More Races - Non Hispanic 2,746 1.71%