Union city is located in Canadian county Oklahoma with a geographic area of 56.1 square miles. The total population in Union city is 1,497 with 56.0% male and 44.0% female. Children under age 5 represent 5.5% of the population, under age 18 equal 25.5% of the population and over age 65 is 8.6% of the population. The median household income is $81,875, per capita income is $25,659. There are a total of 363 housing units with 81.3% owner occupied. Education includes 26.7% of residents that are high school graduates and 28.7% with a bachelor's degree or higher. The average temperature in Union city in the summer is 80 degrees, and in the winter 42 degrees.