Willamina is located in Yamhill county Oregon with a geographic area of 0.9 square miles. The total population in Willamina is 2,425 with 49.0% male and 51.0% female. Children under age 5 represent 7.1% of the population, under age 18 equal 28.5% of the population and over age 65 is 16.1% of the population. The median household income is $49,050, per capita income is $19,899. There are a total of 808 housing units with 64.6% owner occupied. Education includes 25.7% of residents that are high school graduates and 10.8% with a bachelor's degree or higher. The average temperature in Willamina in the summer is 68 degrees, and in the winter 35 degrees.