Union, LA Demographics

A map of Union's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
Black	433	565	82.3%	76.9%
White	82	153	15.6%	20.8%
Multiracial	7	14	1.3%	1.9%
Hispanic	4	3	0.8%	0.4%
Asian	0	0	0.0%	0.0%
Native American/Other	0	0	0.0%	0.0%

Union, Louisiana has an estimated population of 526, a large decrease from the 735 recorded in the 2020 Census. The population is 82.3% Black, 15.6% White, 1.3% Multiracial, 0.8% Hispanic, 0.0% Asian, 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 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, that probability was 36.5% in 2020 and 29.8% in the most recent ACS estimates.

Union is ranked the 350th most populous place in Louisiana, out of 489 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 310th most populous place in the 2020 Census.

Union's White Population

82 residents of Union, or 15.6% of the population, identify as White. The share of White residents in Union is significantly lower than in Louisiana overall, where 55.7% of the population is White. Union ranks 443rd statewide in terms of White residents as a share of the population, out of 489 places.

Since the 2020 Census, Union's White population has declined by an estimated 46.4%. White residents' share of Union's population has decreased from 20.8% to 15.6%.

Union is more White than neighboring Welcome (5.3% White). Union is less White than neighboring Lemannville (28.9% White), Romeville (100% White), St. James (27.8% White), and Sorrento (71.8% White).

Union's Black Population

433 residents of Union, or 82.3% of the population, identify as Black. The share of Black residents in Union is significantly higher than in Louisiana overall, where 30.5% of the population is Black. Union ranks 37th statewide in terms of Black residents as a share of the population, out of 489 places.

Since the 2020 Census, Union's Black population has declined by an estimated 23.4%. Black residents' share of Union's population has increased from 76.9% to 82.3%.

Union is more Black than neighboring Lemannville (65.4% Black), Romeville (0% Black), St. James (72.2% Black), and Sorrento (19.7% Black). Union is less Black than neighboring Welcome (83.5% Black).

Union's Asian Population

0 residents of Union, or 0.0% of the population, identify as Asian. The share of Asian residents in Union is comparable to the share in Louisiana overall, where 1.7% of the population is Asian. Union ranks 333rd statewide in terms of Asian residents as a share of the population, out of 489 places.

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

Union's Hispanic Population

4 residents of Union, or 0.8% of the population, identify as Hispanic. The share of Hispanic residents in Union is lower than in Louisiana overall, where 7.2% of the population is Hispanic. Union ranks 471st statewide in terms of Hispanic residents as a share of the population, out of 489 places.

Since the 2020 Census, Union's Hispanic population has grown by an estimated 33.3%. Hispanic residents' share of Union's population has remained roughly unchanged at 0.8%.

Union is more Hispanic than neighboring Welcome (0% Hispanic), Romeville (0% Hispanic), and St. James (0% Hispanic). Union is less Hispanic than neighboring Lemannville (2% Hispanic), and Sorrento (1.5% 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 Louisiana overall, where 1% of the population is Native American/Other. Union ranks 433rd statewide in terms of Native American/Other residents as a share of the population, out of 489 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 is less Native American/Other than neighboring Lemannville (0.8% Native American/Other), and Sorrento (0.2% Native American/Other).

Union's Multiracial Population

7 residents of Union, or 1.3% of the population, identify as Multiracial. The share of Multiracial residents in Union is slightly lower than in Louisiana overall, where 3.8% of the population is Multiracial. Union ranks 420th statewide in terms of Multiracial residents as a share of the population, out of 489 places.

Since the 2020 Census, Union's Multiracial population has declined by an estimated 50.0%. Multiracial residents' share of Union's population has decreased from 1.9% to 1.3%.

Union is more Multiracial than neighboring Romeville (0% Multiracial), and St. James (0% Multiracial). Union is less Multiracial than neighboring Lemannville (2.9% Multiracial), Welcome (11.2% Multiracial), and Sorrento (6.8% 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.