La grande is located in Union county Oregon with a geographic area of 4.6 square miles. The total population in La grande is 13,380 with 47.4% male and 52.6% female. Children under age 5 represent 5.8% of the population, under age 18 equal 22.5% of the population and over age 65 is 17.4% of the population. The median household income is $45,573, per capita income is $24,985. There are a total of 5,378 housing units with 55.2% owner occupied. Education includes 29.5% of residents that are high school graduates and 25.9% with a bachelor's degree or higher. The average temperature in La grande in the summer is 66 degrees, and in the winter 35 degrees.