Union, IL Demographics

A map of Union's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	565	481	90.5%	87.3%
Hispanic	34	48	5.4%	8.7%
Asian	13	6	2.1%	1.1%
Multiracial	7	16	1.1%	2.9%
Black	5	0	0.8%	0.0%
Native American/Other	0	0	0.0%	0.0%

Union, Illinois has an estimated population of 624, a large increase from the 551 recorded in the 2020 Census. The population is 90.5% White, 5.4% Hispanic, 2.1% Asian, 1.1% Multiracial, 0.8% Black, and 0.0% Native American/Other. This demographic dot map shows the population of Union, with one dot drawn for each person counted by the Census, color-coded by race.

Union has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Illinois overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Union, that probability was 22.9% in 2020 and 17.7% in the most recent ACS estimates.

Union is ranked the 858th most populous place in Illinois, out of 1,461 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Union was ranked the 880th most populous place in the 2020 Census.

Union's White Population

565 residents of Union, or 90.5% of the population, identify as White. The share of White residents in Union is significantly higher than in Illinois overall, where 58.1% of the population is White. Union ranks 926th statewide in terms of White residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Union's White population has grown by an estimated 17.5%. White residents' share of Union's population has increased from 87.3% to 90.5%.

Union is more White than neighboring Coral (0% White), Franklinville (0% White), Marengo (85.3% White), Harmony (0% White), and Riley (0% White).

Union's Black Population

5 residents of Union, or 0.8% of the population, identify as Black. The share of Black residents in Union is considerably lower than in Illinois overall, where 13.3% of the population is Black. Union ranks 1104th statewide in terms of Black residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Union's Black population has grown from 0 to an estimated 5. Black residents' share of Union's population has increased from 0.0% to 0.8%.

Union is more Black than neighboring Coral (0% Black), Franklinville (0% Black), Marengo (0.4% Black), Harmony (0% Black), and Riley (0% Black).

Union's Asian Population

13 residents of Union, or 2.1% of the population, identify as Asian. The share of Asian residents in Union is slightly lower than in Illinois overall, where 5.9% of the population is Asian. Union ranks 353rd statewide in terms of Asian residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Union's Asian population has grown by an estimated 116.7%. Asian residents' share of Union's population has increased from 1.1% to 2.1%.

Union is more Asian than neighboring Coral (0% Asian), Franklinville (0% Asian), Marengo (0.1% Asian), Harmony (0% Asian), and Riley (0% Asian).

Union's Hispanic Population

34 residents of Union, or 5.4% of the population, identify as Hispanic. The share of Hispanic residents in Union is considerably lower than in Illinois overall, where 18.8% of the population is Hispanic. Union ranks 298th statewide in terms of Hispanic residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Union's Hispanic population has declined by an estimated 29.2%. Hispanic residents' share of Union's population has decreased from 8.7% to 5.4%.

Union is more Hispanic than neighboring Coral (0% Hispanic), Franklinville (0% Hispanic), Harmony (0% Hispanic), and Riley (0% Hispanic). Union is less Hispanic than neighboring Marengo (11.3% Hispanic).

Union's Native American/Other Population

0 residents of Union, or 0.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Union is comparable to the share in Illinois overall, where 0.5% of the population is Native American/Other. Union ranks 1139th statewide in terms of Native American/Other residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Union's Native American/Other population has grown from 0 to an estimated 0. Native American/Other residents' share of Union's population has remained roughly unchanged at 0.0%.

Union's Multiracial Population

7 residents of Union, or 1.1% of the population, identify as Multiracial. The share of Multiracial residents in Union is slightly lower than in Illinois overall, where 3.4% of the population is Multiracial. Union ranks 973rd statewide in terms of Multiracial residents as a share of the population, out of 1,461 places.

Since the 2020 Census, Union's Multiracial population has declined by an estimated 56.3%. Multiracial residents' share of Union's population has decreased from 2.9% to 1.1%.

Union is more Multiracial than neighboring Coral (0% Multiracial), Franklinville (0% Multiracial), Harmony (0% Multiracial), and Riley (0% Multiracial). Union is less Multiracial than neighboring Marengo (2.9% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.