Rainier is located in Columbia county Oregon with a geographic area of 4.1 square miles. The total population in Rainier is 2,080 with 51.1% male and 48.9% female. Children under age 5 represent 6.4% of the population, under age 18 equal 23.1% of the population and over age 65 is 18.5% of the population. The median household income is $51,750, per capita income is $27,297. There are a total of 803 housing units with 56.8% owner occupied. Education includes 33.5% of residents that are high school graduates and 23.9% with a bachelor's degree or higher. The average temperature in Rainier in the summer is 61 degrees, and in the winter 35 degrees.
