Marietta at a glance
County seat of Cobb County; a suburban city approximately 15 miles northwest of downtown Atlanta. Home to the historic Marietta Square, five National Register historic districts, Kennesaw Mountain National Battlefield Park immediately to the north, and Life University. Described by the New Georgia Encyclopedia as one of the anchor cities of northwest metropolitan Atlanta. 2020 population: 60,972 (2020 U.S. Census Bureau decennial count); estimated at roughly 64,000 in 2026