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About Marietta
Marietta is located in Cobb county Georgia with a geographic area of 23.4 square miles. The total population in Marietta is 60,687 with 50.1% male and 49.9% female. Children under age 5 represent 6.7% of the population, under age 18 equal 21.8% of the population and over age 65 is 13.2% of the population. The median household income is $59,594, per capita income is $36,112. There are a total of 24,148 housing units with 44.0% owner occupied. Education includes 15.3% of residents that are high school graduates and 45.3% with a bachelor's degree or higher. The average temperature in Marietta in the summer is 76 degrees, and in the winter 42 degrees.