Marble city is located in Sequoyah county Oklahoma with a geographic area of 0.4 square miles. The total population in Marble city is 194 with 45.9% male and 54.1% female. Children under age 5 represent 7.2% of the population, under age 18 equal 24.2% of the population and over age 65 is 22.2% of the population. The median household income is $37,813, per capita income is $19,589. There are a total of 67 housing units with 80.6% owner occupied. Education includes 41.8% of residents that are high school graduates and 17.9% with a bachelor's degree or higher. The average temperature in Marble city in the summer is 80 degrees, and in the winter 42 degrees.