Rock Island County Demographics
A map of Rock Island County's Population by Race
Race | Population | Percent |
|---|---|---|
White | 97,689 | 67.5% |
Hispanic | 19,842 | 13.7% |
Black | 16,169 | 11.2% |
Multiracial | 6,182 | 4.3% |
Asian | 4,033 | 2.8% |
Native American/Other | 757 | 0.5% |
Rock Island County, Illinois had a population of 144,672 in 2020. It was 67.5% White, 11.2% Black, 2.8% Asian, 13.7% Hispanic, 0.5% Native American/Other, and 4.3% Multiracial. This map presents the population of Rock Island County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.
Rock Island County is the 14th most populous county of the 102 counties in Illinois.
Rock Island County's White Population
97,689 residents of Rock Island County identify as White, or 67.5%. This makes the White share of the population of Rock Island County slightly larger than the White share of the population of Illinois (58.3% White). Of the 102 counties in Illinois, Rock Island County is ranked #90 in terms of White residents as a share of the population.
Rock Island County is less White than neighboring Scott County (77% White), Mercer County (92.9% White), Clinton County (88.7% White), Henry County (87.4% White), and Muscatine County (75.5% White).
Rock Island County's Black Population
16,169 residents of Rock Island County identify as Black, or 11.2%. This makes the Black share of the population of Rock Island County roughly similar to the Black share of the population of Illinois (13.9% Black). Of the 102 counties in Illinois, Rock Island County is ranked #15 in terms of Black residents as a share of the population.
Rock Island County is more Black than neighboring Scott County (7.8% Black), Mercer County (0.4% Black), Clinton County (3% Black), Henry County (2.1% Black), and Muscatine County (2.5% Black).
Rock Island County's Asian Population
4,033 residents of Rock Island County identify as Asian, or 2.8%. This makes the Asian share of the population of Rock Island County roughly similar to the Asian share of the population of Illinois (5.8% Asian). Of the 102 counties in Illinois, Rock Island County is ranked #12 in terms of Asian residents as a share of the population.
Rock Island County is more Asian than neighboring Mercer County (0.2% Asian), Clinton County (0.5% Asian), Henry County (0.4% Asian), and Muscatine County (0.9% Asian).
Rock Island County's Hispanic Population
19,842 residents of Rock Island County identify as Hispanic, or 13.7%. This makes the Hispanic share of the population of Rock Island County roughly similar to the Hispanic share of the population of Illinois (18.2% Hispanic). Of the 102 counties in Illinois, Rock Island County is ranked #11 in terms of Hispanic residents as a share of the population.
Rock Island County is more Hispanic than neighboring Scott County (6.9% Hispanic), Mercer County (3% Hispanic), Clinton County (3.3% Hispanic), and Henry County (6.4% Hispanic). Rock Island County is less Hispanic than neighboring Muscatine County (18% Hispanic).
Rock Island County's Native American/Other Population
757 residents of Rock Island County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 0.5%. This makes the Native American/Other share of the population of Rock Island County roughly similar to the Native American/Other share of the population of Illinois (0.5% Native American/Other). Of the 102 counties in Illinois, Rock Island County is ranked #26 in terms of Native American/Other residents as a share of the population.
Rock Island County is more Native American/Other than neighboring Mercer County (0.3% Native American/Other), Henry County (0.3% Native American/Other), and Muscatine County (0.4% Native American/Other).
Rock Island County's Multiracial Population
6,182 residents of Rock Island County identify as Multiracial, or 4.3%. This makes the Multiracial share of the population of Rock Island County roughly similar to the Multiracial share of the population of Illinois (3.2% Multiracial). Of the 102 counties in Illinois, Rock Island County is ranked #17 in terms of Multiracial residents as a share of the population.
Rock Island County is more Multiracial than neighboring Mercer County (3.2% Multiracial), Clinton County (3.9% Multiracial), Henry County (3.3% Multiracial), and Muscatine County (2.7% Multiracial). Rock Island County is less Multiracial than neighboring Scott County (4.9% Multiracial).
Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.