Cowiche is located in Yakima county Washington with a geographic area of 0.8 square miles. The total population in Cowiche is 662 with 61.0% male and 39.0% female. Children under age 5 represent 0.0% of the population, under age 18 equal 27.5% of the population and over age 65 is 2.4% of the population. The median household income is $34,302, per capita income is $14,688. There are a total of 330 housing units with 4.8% owner occupied. Education includes 4.8% of residents that are high school graduates and 0.0% with a bachelor's degree or higher. The average temperature in Cowiche in the summer is 60 degrees, and in the winter 42 degrees.