Oakvale is located in Mercer county West virginia with a geographic area of 0.4 square miles. The total population in Oakvale is 201 with 45.8% male and 54.2% female. Children under age 5 represent 1.0% of the population, under age 18 equal 63.2% of the population and over age 65 is 3.0% of the population. The median household income is $21,354, per capita income is $8,890. There are a total of 48 housing units with 27.1% owner occupied. Education includes 79.2% of residents that are high school graduates and 2.1% with a bachelor's degree or higher. The average temperature in Oakvale in the summer is 69 degrees, and in the winter 32 degrees.