Dewar is located in Okmulgee county Oklahoma with a geographic area of 1.0 square miles. The total population in Dewar is 801 with 49.9% male and 50.1% female. Children under age 5 represent 5.4% of the population, under age 18 equal 26.2% of the population and over age 65 is 22.5% of the population. The median household income is $41,500, per capita income is $19,655. There are a total of 286 housing units with 79.0% owner occupied. Education includes 43.0% of residents that are high school graduates and 8.0% with a bachelor's degree or higher. The average temperature in Dewar in the summer is 80 degrees, and in the winter 42 degrees.