Population By Race and Ethnicity in Rock Island County, IL in 2020

Updated on August 1, 2024.

Based on the US Census Vintage data estimates, in 2020, the 144,360 population of Rock Island County, Illinois comprised of 19,816 people who identified as Hispanic (13.73%), and 124,544 people who identified as Non-Hispanic (86.27%).

Race: The White Alone population was the largest racial group in Rock Island County, Illinois with a population of 118,374 (82%); Black or African American Alone population was the second largest racial group with a population of 16,527 (11.45%); and Two Or More Races was the third largest racial group with a population of 4,585 (3.18%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Rock Island County, Illinois in 2020, with a population of 101,048 (70%); the second largest ethnic group was White Alone - Hispanic with a population of 17,326 (12%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 15,630 (10.83%).

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

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

See this for other years:
Hispanics and Non Hispanics in Rock Island County, IL in 2020
Total Population:
Race in Rock Island County, IL in 2020
Total Population:
Ethnicity in Rock Island County, IL in 2020
Total Population:
Population By Race in Rock Island , IL in 2020
Race Population Percentage
Black or African American Alone 16,527 11.45%
White Alone 118,374 82%
American Indian and Alaska Native Alone 930 0.64%
Asian Alone 3,882 2.69%
Native Hawaiian And Pacific Islander Alone 62 0.04%
Two Or More Races 4,585 3.18%
Population By Ethnicity in Rock Island , IL in 2020
Ethnicity Population Percentage
Black or African American Alone - Hispanic 897 0.62%
White Alone - Hispanic 17,326 12%
American Indian and Alaska Native Alone - Hispanic 644 0.45%
Asian Alone - Hispanic 132 0.09%
Native Hawaiian And Pacific Islander Alone - Hispanic 19 0.01%
Two Or More Races - Hispanic 798 0.55%
Black or African American Alone - Non Hispanic 15,630 10.83%
White Alone - Non Hispanic 101,048 70%
American Indian and Alaska Native Alone - Non Hispanic 286 0.2%
Asian Alone - Non Hispanic 3,750 2.6%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 43 0.03%
Two Or More Races - Non Hispanic 3,787 2.62%