Marble City is a city located in Sequoyah County Oklahoma. With a 2020 population of 247, it is the 427th largest city in Oklahoma and the 15999th largest city in the United States . Marble City is currently declining at a rate of -0.40% annually and its population has decreased by -6.08% since the most recent census, which recorded a population of 263 in 2010. Marble City reached it's highest population of 263 in 2010. Spanning over 0 miles, Marble City has a population density of 609 people per square mile.
The average household income in Marble City is $42,791 with a poverty rate of 26.54%. The median rental costs in recent years comes to $583 per month, and the median house value is $57,500. The median age in Marble City is 43.4 years, 43.5 years for males, and 43.4 years for females.