Union is located in Union county Oregon with a geographic area of 2.5 square miles. The total population in Union is 1,841 with 49.8% male and 50.2% female. Children under age 5 represent 4.7% of the population, under age 18 equal 17.4% of the population and over age 65 is 20.1% of the population. The median household income is $50,417, per capita income is $26,525. There are a total of 828 housing units with 69.9% owner occupied. Education includes 32.1% of residents that are high school graduates and 12.8% with a bachelor's degree or higher. The average temperature in Union in the summer is 64 degrees, and in the winter 35 degrees.