Vernonia is located in Columbia county Oregon with a geographic area of 1.6 square miles. The total population in Vernonia is 2,158 with 55.0% male and 45.0% female. Children under age 5 represent 3.2% of the population, under age 18 equal 17.4% of the population and over age 65 is 17.5% of the population. The median household income is $52,402, per capita income is $28,790. There are a total of 850 housing units with 76.7% owner occupied. Education includes 37.9% of residents that are high school graduates and 18.4% with a bachelor's degree or higher. The average temperature in Vernonia in the summer is 59 degrees, and in the winter 35 degrees.
