Winlock is located in Lewis county Washington with a geographic area of 1.3 square miles. The total population in Winlock is 1,740 with 51.4% male and 48.6% female. Children under age 5 represent 7.8% of the population, under age 18 equal 26.1% of the population and over age 65 is 13.6% of the population. The median household income is $52,104, per capita income is $23,320. There are a total of 569 housing units with 62.6% owner occupied. Education includes 23.0% of residents that are high school graduates and 17.0% with a bachelor's degree or higher. The average temperature in Winlock in the summer is 63 degrees, and in the winter 42 degrees.