Rosburg is located in Wahkiakum county Washington with a geographic area of 22.9 square miles. The total population in Rosburg is 320 with 47.5% male and 52.5% female. Children under age 5 represent 3.4% of the population, under age 18 equal 30.0% of the population and over age 65 is 18.8% of the population. The median household income is $79,583, per capita income is $26,482. There are a total of 123 housing units with 87.0% owner occupied. Education includes 16.3% of residents that are high school graduates and 30.9% with a bachelor's degree or higher. The average temperature in Rosburg in the summer is 60 degrees, and in the winter 42 degrees.