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About Washington
Washington is located in Washington county Iowa with a geographic area of 5.3 square miles. The total population in Washington is 7,318 with 45.5% male and 54.5% female. Children under age 5 represent 6.6% of the population, under age 18 equal 24.1% of the population and over age 65 is 21.6% of the population. The median household income is $54,541, per capita income is $26,366. There are a total of 2,995 housing units with 58.0% owner occupied. Education includes 38.2% of residents that are high school graduates and 18.8% with a bachelor's degree or higher. The average temperature in Washington in the summer is 74 degrees, and in the winter 23 degrees.