Prosser is located in Benton county Washington with a geographic area of 4.7 square miles. The total population in Prosser is 6,288 with 46.0% male and 54.0% female. Children under age 5 represent 4.2% of the population, under age 18 equal 26.8% of the population and over age 65 is 17.0% of the population. The median household income is $53,333, per capita income is $23,472. There are a total of 2,448 housing units with 56.8% owner occupied. Education includes 26.7% of residents that are high school graduates and 24.0% with a bachelor's degree or higher. The average temperature in Prosser in the summer is 70 degrees, and in the winter 42 degrees.
