Population By Race and Ethnicity in Rock Island, IL in 2017

Updated on June 16, 2025.

Based on the US Census Vintage data estimates, in 2017, the 143,824 population of Rock Island County, Illinois comprised of 18,528 people who identified as Hispanic (12.88%), and 125,296 people who identified as Non-Hispanic (87.12%).

Race: The White Alone population was the largest racial group in Rock Island County, Illinois with a population of 119,487 (83.08%); Black or African American Alone population was the second largest racial group with a population of 15,556 (10.82%); and Two Or More Races was the third largest racial group with a population of 4,169 (2.9%).

Ethnicity: The White Alone - Non Hispanic population was the largest ethnic group in Rock Island County, Illinois in 2017, with a population of 103,262 (71.8%); the second largest ethnic group was White Alone - Hispanic with a population of 16,225 (11.28%); and the third largest ethnic group was Black or African American Alone - Non Hispanic with a population of 14,726 (10.24%).

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 2017
Total Population:
Race in Rock Island, IL in 2017
Total Population:
Ethnicity in Rock Island, IL in 2017
Total Population:
Population By Race in Rock Island , IL in 2017
Race Population Percentage
Black or African American Alone 15,556 10.82%
White Alone 119,487 83.08%
American Indian and Alaska Native Alone 857 0.6%
Asian Alone 3,690 2.57%
Native Hawaiian And Pacific Islander Alone 65 0.05%
Two Or More Races 4,169 2.9%
Population By Ethnicity in Rock Island , IL in 2017
Ethnicity Population Percentage
Black or African American Alone - Hispanic 830 0.58%
White Alone - Hispanic 16,225 11.28%
American Indian and Alaska Native Alone - Hispanic 581 0.4%
Asian Alone - Hispanic 114 0.08%
Native Hawaiian And Pacific Islander Alone - Hispanic 14 0.01%
Two Or More Races - Hispanic 764 0.53%
Black or African American Alone - Non Hispanic 14,726 10.24%
White Alone - Non Hispanic 103,262 71.8%
American Indian and Alaska Native Alone - Non Hispanic 276 0.19%
Asian Alone - Non Hispanic 3,576 2.49%
Native Hawaiian And Pacific Islander Alone - Non Hispanic 51 0.04%
Two Or More Races - Non Hispanic 3,405 2.37%