Population By Race and Ethnicity in Rock Island, IL in 2019

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2019, the 141,775 population of Rock Island County, Illinois comprised of 18,800 people who identified as Hispanic (13.26%), and 122,975 people who identified as Non-Hispanic (86.74%).

Race: The White Alone population was the largest racial group in Rock Island County, Illinois with a population of 116,772 (82.36%); Black or African American Alone population was the second largest racial group with a population of 15,920 (11.23%); and Two Or More Races was the third largest racial group with a population of 4,334 (3.06%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Rock Island County, Illinois in 2019, with a population of 100,381 (70.8%); the second largest ethnic group was White Alone - Hispanic with a population of 16,391 (11.56%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 15,065 (10.63%).

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, IL in 2019
Total Population:
Race in Rock Island, IL in 2019
Total Population:
Ethnicity in Rock Island, IL in 2019
Total Population:
Population By Race in Rock Island , IL in 2019
Race Population Percentage
Black or African American Alone 15,920 11.23%
White Alone 116,772 82.36%
American Indian and Alaska Native Alone 919 0.65%
Asian Alone 3,764 2.66%
Native Hawaiian And Pacific Islander Alone 66 0.05%
Two Or More Races 4,334 3.06%
Population By Ethnicity in Rock Island , IL in 2019
Ethnicity Population Percentage
Black or African American Alone - Hispanic 855 0.6%
White Alone - Hispanic 16,391 11.56%
American Indian and Alaska Native Alone - Hispanic 632 0.45%
Asian Alone - Hispanic 126 0.09%
Native Hawaiian And Pacific Islander Alone - Hispanic 21 0.02%
Two Or More Races - Hispanic 775 0.55%
Black or African American Alone - Non Hispanic 15,065 10.63%
White Alone - Non Hispanic 100,381 70.8%
American Indian and Alaska Native Alone - Non Hispanic 287 0.2%
Asian Alone - Non Hispanic 3,638 2.57%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 45 0.03%
Two Or More Races - Non Hispanic 3,559 2.51%