Union is a city in Union County, Oregon, United States. The population was 2,121 at the 2010 census.
Union lies in the extreme southeast corner of the Grande Ronde Valley near the western edge of the Wallowa Mountains. Oregon Route 237 runs through the city between Cove to the north and North Powder to the south. Oregon Route 203 also passes through Union, linking it to La Grande, about 20 miles (32 km) to the northwest. Catherine Creek, a tributary of the Grande Ronde River, passes through the city.
According to the United States Census Bureau, the city has a total area of 2.50 square miles (6.47 km), all of it land.
As of the census of 2000, there were 1,926 people, 766 households, and 550 families residing in the city. The population density was 773.0 people per square mile (298.6/km²). There were 821 housing units at an average density of 329.5 per square mile (127.3/km²). The racial makeup of the city was 96.21% White, 0.10% African American, 0.99% Native American, 0.36% Asian, 0.05% Pacific Islander, 0.73% from other races, and 1.56% from two or more races. Hispanic or Latino of any race were 1.30% of the population.
There were 766 households out of which 30.5% had children under the age of 18 living with them, 59.5% were married couples living together, 9.0% had a female householder with no husband present, and 28.1% were non-families. 24.0% of all households were made up of individuals and 12.4% had someone living alone who was 65 years of age or older. The average household size was 2.51 and the average family size was 2.97.
In the city, the population was spread out with 26.0% under the age of 18, 6.0% from 18 to 24, 24.5% from 25 to 44, 25.4% from 45 to 64, and 18.2% who were 65 years of age or older. The median age was 41 years. For every 100 females, there were 92.0 males. For every 100 females age 18 and over, there were 89.6 males.
The median income for a household in the city was $28,529, and the median income for a family was $34,286. Males had a median income of $32,148 versus $16,776 for females. The per capita income for the city was $14,406. About 12.2% of families and 13.0% of the population were below the poverty line, including 16.3% of those under age 18 and 16.0% of those age 65 or over.
As of the census of 2010, there were 2,121 people, 859 households, and 603 families residing in the city. The population density was 848.4 inhabitants per square mile (327.6/km). There were 933 housing units at an average density of 373.2 per square mile (144.1/km). The racial makeup of the city was 95.6% White, 0.1% African American, 1.1% Native American, 0.1% Asian, 0.1% Pacific Islander, 0.6% from other races, and 2.3% from two or more races. Hispanic or Latino of any race were 2.3% of the population.
There were 859 households of which 31.4% had children under the age of 18 living with them, 56.7% were married couples living together, 9.3% had a female householder with no husband present, 4.2% had a male householder with no wife present, and 29.8% were non-families. 24.9% of all households were made up of individuals and 12.1% had someone living alone who was 65 years of age or older. The average household size was 2.46 and the average family size was 2.93.
The median age in the city was 43.8 years. 24.7% of residents were under the age of 18; 5.9% were between the ages of 18 and 24; 20.6% were from 25 to 44; 30.8% were from 45 to 64; and 17.9% were 65 years of age or older. The gender makeup of the city was 49.2% male and 50.8% female.