Union County Demographics

A map of Union County's Population by Race

Union County, Louisiana has an estimated population of 20,821, a slight decrease from the 21,107 recorded in the 2020 Census. The population is 69.0% White, 23.5% Black, 5.8% Hispanic, 1.4% Multiracial, 0.2% Asian, and 0.1% Native American/Other. This demographic dot map shows the population of Union County, with one dot drawn for each person counted by the Census, color-coded by race.

Union has become less racially diverse since the 2020 Census. It is considerably less diverse than Louisiana overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Union County, that probability was 48.2% in 2020 and 46.6% in the most recent ACS estimates.

Union County is ranked the 42nd most populous county in Louisiana, out of 64 counties. Union County was ranked the 42nd most populous county in the 2020 Census.

Union County's White Population

14,357 residents of Union County, or 69.0% of the population, identify as White. The share of White residents in Union County is considerably higher than in Louisiana overall, where 55.7% of the population is White. Union County ranks 15th statewide in terms of White residents as a share of the population, out of 64 counties.

Since the 2020 Census, Union County's White population has remained roughly the same. White residents' share of Union County's population has increased from 67.7% to 69.0%.

Union County is more White than neighboring Lincoln County (52.7% White), Union County (59.4% White), Ouachita County (55.3% White), Jackson County (65.7% White), and Morehouse County (47.2% White).

Union County's Black Population

4,888 residents of Union County, or 23.5% of the population, identify as Black. The share of Black residents in Union County is lower than in Louisiana overall, where 30.5% of the population is Black. Union County ranks 45th statewide in terms of Black residents as a share of the population, out of 64 counties.

Since the 2020 Census, Union County's Black population has declined by an estimated 1.8%. Black residents' share of Union County's population has remained roughly unchanged at 23.5%.

Union County is less Black than neighboring Lincoln County (36.9% Black), Union County (32.1% Black), Ouachita County (37.2% Black), Jackson County (23.6% Black), and Morehouse County (48.3% Black).

Union County's Asian Population

47 residents of Union County, or 0.2% of the population, identify as Asian. The share of Asian residents in Union County is comparable to the share in Louisiana overall, where 1.7% of the population is Asian. Union County ranks 57th statewide in terms of Asian residents as a share of the population, out of 64 counties.

Since the 2020 Census, Union County's Asian population has grown by an estimated 23.7%. Asian residents' share of Union County's population has remained roughly unchanged at 0.2%.

Union County is less Asian than neighboring Lincoln County (1.3% Asian), Union County (0.9% Asian), Ouachita County (1.1% Asian), and Jackson County (0.4% Asian).

Union County's Hispanic Population

1,216 residents of Union County, or 5.8% of the population, identify as Hispanic. The share of Hispanic residents in Union County is comparable to the share in Louisiana overall, where 7.2% of the population is Hispanic. Union County ranks 24th statewide in terms of Hispanic residents as a share of the population, out of 64 counties.

Since the 2020 Census, Union County's Hispanic population has grown by an estimated 7.1%. Hispanic residents' share of Union County's population has remained roughly unchanged at 5.8%.

Union County is more Hispanic than neighboring Lincoln County (3.7% Hispanic), Union County (4.7% Hispanic), Ouachita County (3.7% Hispanic), Jackson County (3.5% Hispanic), and Morehouse County (1.7% Hispanic).

Union County's Native American/Other Population

18 residents of Union County, 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 County is comparable to the share in Louisiana overall, where 1% of the population is Native American/Other. Union County ranks 52nd statewide in terms of Native American/Other residents as a share of the population, out of 64 counties.

Since the 2020 Census, Union County's Native American/Other population has declined by an estimated 81.1%. Native American/Other residents' share of Union County's population has remained roughly unchanged at 0.1%.

Union County is less Native American/Other than neighboring Lincoln County (1.2% Native American/Other), Union County (0.3% Native American/Other), Ouachita County (0.3% Native American/Other), Jackson County (1.5% Native American/Other), and Morehouse County (0.6% Native American/Other).

Union County's Multiracial Population

295 residents of Union County, or 1.4% of the population, identify as Multiracial. The share of Multiracial residents in Union County is slightly lower than in Louisiana overall, where 3.8% of the population is Multiracial. Union County ranks 45th statewide in terms of Multiracial residents as a share of the population, out of 64 counties.

Since the 2020 Census, Union County's Multiracial population has declined by an estimated 48.2%. Multiracial residents' share of Union County's population has decreased from 2.7% to 1.4%.

Union County is less Multiracial than neighboring Lincoln County (4.2% Multiracial), Union County (2.7% Multiracial), Ouachita County (2.3% Multiracial), Jackson County (5.3% Multiracial), and Morehouse County (2% 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.