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.

Data Source: US Census Bureau (Vintage).

See this for other years:

Hispanics and Non Hispanics in Rock Island County, IL in 2020

Total Population:144,360

Non Hispanic (86.27%)

Hispanic (13.73%)

Race in Rock Island County, IL in 2020

Total Population:144,360

White Alone (82%)

Black or African American Alone (11.45%)

Two or more races (3.18%)

Asian Alone (2.69%)

American Indian and Alaska Native Alone (0.64%)

Native Hawaiian And Pacific Islander Alone (0.04%)

Ethnicity in Rock Island County, IL in 2020

Total Population:144,360

Non-Hispanic White Alone (70%)

Hispanic White Alone (12%)

Non-Hispanic Black or African American Alone (10.83%)

Non-Hispanic Two or more races (2.62%)

Non-Hispanic Asian Alone (2.6%)

All Other Ethnicities (1.95%)

Population By Race in Rock Island , IL in 2020

Race	Population	Percentage
White Alone	118,374	82%
Black or African American Alone	16,527	11.45%
Two Or More Races	4,585	3.18%
Asian Alone	3,882	2.69%
American Indian and Alaska Native Alone	930	0.64%
Native Hawaiian And Pacific Islander Alone	62	0.04%

Population By Ethnicity in Rock Island , IL in 2020

Ethnicity	Population	Percentage
White Alone - Non Hispanic	101,048	70%
White Alone - Hispanic	17,326	12%
Black or African American Alone - Non Hispanic	15,630	10.83%
Two Or More Races - Non Hispanic	3,787	2.62%
Asian Alone - Non Hispanic	3,750	2.6%
Black or African American Alone - Hispanic	897	0.62%
Two Or More Races - Hispanic	798	0.55%
American Indian and Alaska Native Alone - Hispanic	644	0.45%
American Indian and Alaska Native Alone - Non Hispanic	286	0.2%
Asian Alone - Hispanic	132	0.09%
Native Hawaiian And Pacific Islander Alone - Non Hispanic	43	0.03%
Native Hawaiian And Pacific Islander Alone - Hispanic	19	0.01%