Lamar is located in Hughes county Oklahoma with a geographic area of 12.0 square miles. The total population in Lamar is 158 with 46.2% male and 53.8% female. Children under age 5 represent 2.5% of the population, under age 18 equal 17.7% of the population and over age 65 is 15.8% of the population. The median household income is $38,542, per capita income is $18,526. There are a total of 59 housing units with 83.1% owner occupied. Education includes 66.1% of residents that are high school graduates and 11.9% with a bachelor's degree or higher. The average temperature in Lamar in the summer is 80 degrees, and in the winter 42 degrees.