Bolivar is located in Polk county Missouri with a geographic area of 8.2 square miles. The total population in Bolivar is 11,000 with 45.7% male and 54.3% female. Children under age 5 represent 6.5% of the population, under age 18 equal 22.7% of the population and over age 65 is 18.1% of the population. The median household income is $37,500, per capita income is $19,475. There are a total of 4,066 housing units with 53.9% owner occupied. Education includes 32.8% of residents that are high school graduates and 28.8% with a bachelor's degree or higher. The average temperature in Bolivar in the summer is 76 degrees, and in the winter 32 degrees.