Union, SC Demographics

A map of Union's Population by Race

Union, South Carolina has an estimated population of 8,079, a slight decrease from the 8,174 recorded in the 2020 Census. The population is 50.7% White, 43.0% Black, 4.2% Hispanic, 1.9% Multiracial, 0.1% Asian, and 0.1% 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 is about as racially diverse as it was in the 2020 Census. It is slightly more diverse than South Carolina 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 55.6% in 2020 and 55.5% in the most recent ACS estimates.

Union is ranked the 77th most populous place in South Carolina, out of 475 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 72nd most populous place in the 2020 Census.

Union's White Population

4,096 residents of Union, or 50.7% of the population, identify as White. The share of White residents in Union is considerably lower than in South Carolina overall, where 61.9% of the population is White. Union ranks 327th statewide in terms of White residents as a share of the population, out of 475 places.

Since the 2020 Census, Union's White population has grown by an estimated 11.9%. White residents' share of Union's population has increased from 44.8% to 50.7%.

Union is more White than neighboring Carlisle (8.7% White). Union is less White than neighboring Monarch Mill (57.8% White), Buffalo (99.4% White), Jonesville (53.2% White), and Lockhart (88.1% White).

Union's Black Population

3,478 residents of Union, or 43.0% of the population, identify as Black. The share of Black residents in Union is significantly higher than in South Carolina overall, where 24.6% of the population is Black. Union ranks 115th statewide in terms of Black residents as a share of the population, out of 475 places.

Since the 2020 Census, Union's Black population has declined by an estimated 13.5%. Black residents' share of Union's population has decreased from 49.2% to 43.0%.

Union is more Black than neighboring Monarch Mill (20.5% Black), Buffalo (0% Black), Jonesville (37.9% Black), and Lockhart (7.2% Black). Union is less Black than neighboring Carlisle (88.9% Black).

Union's Asian Population

6 residents of Union, or 0.1% of the population, identify as Asian. The share of Asian residents in Union is comparable to the share in South Carolina overall, where 1.7% of the population is Asian. Union ranks 258th statewide in terms of Asian residents as a share of the population, out of 475 places.

Since the 2020 Census, Union's Asian population has declined by an estimated 82.4%. Asian residents' share of Union's population has remained roughly unchanged at 0.1%.

Union is more Asian than neighboring Buffalo (0% Asian), Jonesville (0% Asian), Lockhart (0% Asian), and Carlisle (0% Asian). Union is less Asian than neighboring Monarch Mill (0.2% Asian).

Union's Hispanic Population

338 residents of Union, or 4.2% of the population, identify as Hispanic. The share of Hispanic residents in Union is slightly lower than in South Carolina overall, where 7.4% of the population is Hispanic. Union ranks 367th statewide in terms of Hispanic residents as a share of the population, out of 475 places.

Since the 2020 Census, Union's Hispanic population has grown by an estimated 139.7%. Hispanic residents' share of Union's population has increased from 1.7% to 4.2%.

Union is more Hispanic than neighboring Monarch Mill (0.1% Hispanic), Buffalo (0% Hispanic), Lockhart (0% Hispanic), and Carlisle (1.4% Hispanic). Union is less Hispanic than neighboring Jonesville (5.5% Hispanic).

Union's Native American/Other Population

5 residents of Union, or 0.1% 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 South Carolina overall, where 0.7% of the population is Native American/Other. Union ranks 364th statewide in terms of Native American/Other residents as a share of the population, out of 475 places.

Since the 2020 Census, Union's Native American/Other population has declined by an estimated 84.4%. Native American/Other residents' share of Union's population has remained roughly unchanged at 0.1%.

Union is more Native American/Other than neighboring Buffalo (0% Native American/Other), Jonesville (0% Native American/Other), and Carlisle (0% Native American/Other). Union is less Native American/Other than neighboring Monarch Mill (0.9% Native American/Other), and Lockhart (0.2% Native American/Other).

Union's Multiracial Population

156 residents of Union, or 1.9% of the population, identify as Multiracial. The share of Multiracial residents in Union is comparable to the share in South Carolina overall, where 3.7% of the population is Multiracial. Union ranks 244th statewide in terms of Multiracial residents as a share of the population, out of 475 places.

Since the 2020 Census, Union's Multiracial population has declined by an estimated 45.1%. Multiracial residents' share of Union's population has decreased from 3.5% to 1.9%.

Union is more Multiracial than neighboring Buffalo (0.6% Multiracial), and Carlisle (1% Multiracial). Union is less Multiracial than neighboring Monarch Mill (20.4% Multiracial), Jonesville (3.3% Multiracial), and Lockhart (4.4% 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.