Centralia is located in Lewis county Washington with a geographic area of 7.6 square miles. The total population in Centralia is 17,473 with 49.6% male and 50.4% female. Children under age 5 represent 7.7% of the population, under age 18 equal 22.5% of the population and over age 65 is 19.8% of the population. The median household income is $40,625, per capita income is $23,245. There are a total of 7,496 housing units with 52.0% owner occupied. Education includes 24.7% of residents that are high school graduates and 18.1% with a bachelor's degree or higher. The average temperature in Centralia in the summer is 65 degrees, and in the winter 42 degrees.
