Washington is located in Mcclain county Oklahoma with a geographic area of 1.4 square miles. The total population in Washington is 687 with 47.2% male and 52.8% female. Children under age 5 represent 10.2% of the population, under age 18 equal 31.0% of the population and over age 65 is 9.3% of the population. The median household income is $64,583, per capita income is $26,718. There are a total of 245 housing units with 64.5% owner occupied. Education includes 37.1% of residents that are high school graduates and 30.2% with a bachelor's degree or higher. The average temperature in Washington in the summer is 80 degrees, and in the winter 42 degrees.
