Union County Demographics

A map of Union County's Population by Race

Union County, Illinois had a population of 17,244 in 2020. It was 88.9% White, 1.3% Black, 0.4% Asian, 5.0% Hispanic, 0.5% Native American/Other, and 3.9% Multiracial. This map presents the population of Union County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Union County is the 61st most populous county of the 102 counties in Illinois.

Union County's White Population

15,331 residents of Union County identify as White, or 88.9%. This makes the White share of the population of Union County considerably larger than the White share of the population of Illinois (58.3% White). Of the 102 counties in Illinois, Union County is ranked #49 in terms of White residents as a share of the population.

Union County is more White than neighboring Pulaski County (62.5% White), Alexander County (62.5% White), Jackson County (70.8% White), Johnson County (81.9% White), and Williamson County (86.7% White).

Union County's Black Population

226 residents of Union County identify as Black, or 1.3%. This makes the Black share of the population of Union County less than the Black share of the population of Illinois (13.9% Black). Of the 102 counties in Illinois, Union County is ranked #57 in terms of Black residents as a share of the population.

Union County is less Black than neighboring Pulaski County (28.2% Black), Alexander County (30.8% Black), Jackson County (14.2% Black), Johnson County (10.7% Black), and Williamson County (4.2% Black).

Union County's Asian Population

67 residents of Union County identify as Asian, or 0.4%. This makes the Asian share of the population of Union County slightly less than the Asian share of the population of Illinois (5.8% Asian). Of the 102 counties in Illinois, Union County is ranked #69 in terms of Asian residents as a share of the population.

Union County is more Asian than neighboring Pulaski County (0.3% Asian), Alexander County (0.1% Asian), and Johnson County (0.1% Asian). Union County is less Asian than neighboring Jackson County (3.9% Asian), and Williamson County (1.1% Asian).

Union County's Hispanic Population

867 residents of Union County identify as Hispanic, or 5.0%. This makes the Hispanic share of the population of Union County less than the Hispanic share of the population of Illinois (18.2% Hispanic). Of the 102 counties in Illinois, Union County is ranked #33 in terms of Hispanic residents as a share of the population.

Union County is more Hispanic than neighboring Pulaski County (3.9% Hispanic), Alexander County (1.6% Hispanic), Johnson County (4.1% Hispanic), and Williamson County (2.6% Hispanic). Union County is less Hispanic than neighboring Jackson County (5.4% Hispanic).

Union County's Native American/Other Population

85 residents of Union 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 Union 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, Union County is ranked #31 in terms of Native American/Other residents as a share of the population.

Union County is more Native American/Other than neighboring Johnson County (0.3% Native American/Other). Union County is less Native American/Other than neighboring Pulaski County (1% Native American/Other), Alexander County (0.6% Native American/Other), Jackson County (0.7% Native American/Other), and Williamson County (0.7% Native American/Other).

Union County's Multiracial Population

668 residents of Union County identify as Multiracial, or 3.9%. This makes the Multiracial share of the population of Union County roughly similar to the Multiracial share of the population of Illinois (3.2% Multiracial). Of the 102 counties in Illinois, Union County is ranked #29 in terms of Multiracial residents as a share of the population.

Union County is more Multiracial than neighboring Johnson County (2.9% Multiracial). Union County is less Multiracial than neighboring Pulaski County (4.2% Multiracial), Alexander County (4.5% Multiracial), Jackson County (5.1% Multiracial), and Williamson County (4.7% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.