Union County Demographics

A map of Union County's Population by Race

Union County, New Mexico had a population of 4,079 in 2020. It was 54.8% White, 1.6% Black, 0.1% Asian, 39.1% Hispanic, 1.9% Native American/Other, and 2.5% 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 30th most populous county of the 33 counties in New Mexico.

Union County's White Population

2,234 residents of Union County identify as White, or 54.8%. This makes the White share of the population of Union County larger than the White share of the population of New Mexico (36.5% White). Of the 33 counties in New Mexico, Union County is ranked #6 in terms of White residents as a share of the population.

Union County is more White than neighboring Harding County (53.6% White), Dallam County (43.8% White), and Las Animas County (54.7% White). Union County is less White than neighboring Cimarron County (71.7% White), and Hartley County (63.2% White).

Union County's Black Population

65 residents of Union County identify as Black, or 1.6%. This makes the Black share of the population of Union County roughly similar to the Black share of the population of New Mexico (1.8% Black). Of the 33 counties in New Mexico, Union County is ranked #7 in terms of Black residents as a share of the population.

Union County is more Black than neighboring Harding County (0.3% Black), Dallam County (1% Black), Cimarron County (0% Black), and Las Animas County (1.3% Black). Union County is less Black than neighboring Hartley County (3.5% Black).

Union County's Asian Population

6 residents of Union County identify as Asian, or 0.1%. This makes the Asian share of the population of Union County roughly similar to the Asian share of the population of New Mexico (1.7% Asian). Of the 33 counties in New Mexico, Union County is ranked #32 in terms of Asian residents as a share of the population.

Union County is more Asian than neighboring Harding County (0% Asian), and Cimarron County (0% Asian). Union County is less Asian than neighboring Las Animas County (0.7% Asian), and Hartley County (0.4% Asian).

Union County's Hispanic Population

1,596 residents of Union County identify as Hispanic, or 39.1%. This makes the Hispanic share of the population of Union County slightly less than the Hispanic share of the population of New Mexico (47.7% Hispanic). Of the 33 counties in New Mexico, Union County is ranked #23 in terms of Hispanic residents as a share of the population.

Union County is more Hispanic than neighboring Cimarron County (24.5% Hispanic), Las Animas County (38.7% Hispanic), and Hartley County (30.3% Hispanic). Union County is less Hispanic than neighboring Harding County (42.9% Hispanic), and Dallam County (52.1% Hispanic).

Union County's Native American/Other Population

76 residents of Union County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 1.9%. This makes the Native American/Other share of the population of Union County slightly less than the Native American/Other share of the population of New Mexico (9.5% Native American/Other). Of the 33 counties in New Mexico, Union County is ranked #15 in terms of Native American/Other residents as a share of the population.

Union County is more Native American/Other than neighboring Harding County (0.2% Native American/Other), Dallam County (0.9% Native American/Other), Cimarron County (0.5% Native American/Other), Las Animas County (1.7% Native American/Other), and Hartley County (0.4% Native American/Other).

Union County's Multiracial Population

102 residents of Union County identify as Multiracial, or 2.5%. This makes the Multiracial share of the population of Union County roughly similar to the Multiracial share of the population of New Mexico (2.8% Multiracial). Of the 33 counties in New Mexico, Union County is ranked #20 in terms of Multiracial residents as a share of the population.

Union County is more Multiracial than neighboring Dallam County (2% Multiracial), and Hartley County (2.1% Multiracial). Union County is less Multiracial than neighboring Harding County (3% Multiracial), Cimarron County (3.2% Multiracial), and Las Animas County (2.9% Multiracial).

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