Union County Demographics

A map of Union County's Population by Race

Union County, Oregon had a population of 26,196 in 2020. It was 84.3% White, 0.6% Black, 0.8% Asian, 5.1% Hispanic, 3.2% Native American/Other, and 6.0% 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 23rd most populous county of the 36 counties in Oregon.

Union County's White Population

22,075 residents of Union County identify as White, or 84.3%. This makes the White share of the population of Union County larger than the White share of the population of Oregon (71.7% White). Of the 36 counties in Oregon, Union County is ranked #9 in terms of White residents as a share of the population.

Union County is more White than neighboring Umatilla County (62.1% White), and Walla Walla County (68% White). Union County is less White than neighboring Baker County (88% White), Wallowa County (89.3% White), and Columbia County (84.7% White).

Union County's Black Population

145 residents of Union County identify as Black, or 0.6%. This makes the Black share of the population of Union County roughly similar to the Black share of the population of Oregon (1.9% Black). Of the 36 counties in Oregon, Union County is ranked #15 in terms of Black residents as a share of the population.

Union County is more Black than neighboring Baker County (0.4% Black), Wallowa County (0.1% Black), and Columbia County (0.2% Black). Union County is less Black than neighboring Umatilla County (0.8% Black), and Walla Walla County (1.6% Black).

Union County's Asian Population

216 residents of Union County identify as Asian, or 0.8%. This makes the Asian share of the population of Union County roughly similar to the Asian share of the population of Oregon (4.5% Asian). Of the 36 counties in Oregon, Union County is ranked #25 in terms of Asian residents as a share of the population.

Union County is more Asian than neighboring Baker County (0.4% Asian), Wallowa County (0.4% Asian), and Columbia County (0.5% Asian). Union County is less Asian than neighboring Umatilla County (0.9% Asian), and Walla Walla County (1.5% Asian).

Union County's Hispanic Population

1,347 residents of Union County identify as Hispanic, or 5.1%. This makes the Hispanic share of the population of Union County slightly less than the Hispanic share of the population of Oregon (13.9% Hispanic). Of the 36 counties in Oregon, Union County is ranked #33 in terms of Hispanic residents as a share of the population.

Union County is more Hispanic than neighboring Baker County (4.9% Hispanic), and Wallowa County (3.5% Hispanic). Union County is less Hispanic than neighboring Umatilla County (28.3% Hispanic), Columbia County (7.7% Hispanic), and Walla Walla County (22.7% Hispanic).

Union County's Native American/Other Population

836 residents of Union County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 3.2%. This makes the Native American/Other share of the population of Union County roughly similar to the Native American/Other share of the population of Oregon (2% Native American/Other). Of the 36 counties in Oregon, Union County is ranked #7 in terms of Native American/Other residents as a share of the population.

Union County is more Native American/Other than neighboring Baker County (1.7% Native American/Other), Wallowa County (1.5% Native American/Other), Columbia County (1.5% Native American/Other), and Walla Walla County (1.3% Native American/Other). Union County is less Native American/Other than neighboring Umatilla County (3.7% Native American/Other).

Union County's Multiracial Population

1,577 residents of Union County identify as Multiracial, or 6.0%. This makes the Multiracial share of the population of Union County roughly similar to the Multiracial share of the population of Oregon (6.1% Multiracial). Of the 36 counties in Oregon, Union County is ranked #16 in terms of Multiracial residents as a share of the population.

Union County is more Multiracial than neighboring Baker County (4.7% Multiracial), Umatilla County (4.2% Multiracial), Wallowa County (5.2% Multiracial), Columbia County (5.4% Multiracial), and Walla Walla County (4.9% Multiracial).

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