Population By Race and Ethnicity in Rock County, WI in 2019

Updated on January 29, 2024.

Based on the US Census Vintage data estimates, in 2019, the 163,120 population of Rock County, Wisconsin comprised of 15,139 people who identified as Hispanic (9.28%), and 147,981 people who identified as Non-Hispanic (90.72%).

Race: The White Alone population was the largest racial group in Rock County, Wisconsin with a population of 146,722 (89.95%); Black or African American Alone population was the second largest racial group with a population of 8,732 (5.35%); and Two Or More Races was the third largest racial group with a population of 4,478 (2.75%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Rock County, Wisconsin in 2019, with a population of 133,582 (81.89%); the second largest ethnic group was White Alone - Hispanic with a population of 13,140 (8.06%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 8,127 (4.98%).

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 2019
Total Population:
Race in Rock County, WI in 2019
Total Population:
Ethnicity in Rock County, WI in 2019
Total Population:
Population By Race in Rock , WI in 2019
Race Population Percentage
Black or African American Alone 8,732 5.35%
White Alone 146,722 89.95%
American Indian and Alaska Native Alone 910 0.56%
Asian Alone 2,172 1.33%
Native Hawaiian And Pacific Islander Alone 106 0.07%
Two Or More Races 4,478 2.75%
Population By Ethnicity in Rock , WI in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 605 0.37%
White Alone - Hispanic 13,140 8.06%
American Indian and Alaska Native Alone - Hispanic 505 0.31%
Asian Alone - Hispanic 98 0.06%
Native Hawaiian And Pacific Islander Alone - Hispanic 43 0.03%
Two Or More Races - Hispanic 748 0.46%
Black or African American Alone - Non Hispanic 8,127 4.98%
White Alone - Non Hispanic 133,582 81.89%
American Indian and Alaska Native Alone - Non Hispanic 405 0.25%
Asian Alone - Non Hispanic 2,074 1.27%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 63 0.04%
Two Or More Races - Non Hispanic 3,730 2.29%