Tulsa is the second-largest city in the state of Oklahoma and 47th-most populous city in the United States. The population was 413,066 as of the 2020 census. It is the principal municipality of the Tulsa metropolitan area, a region with 1,023,988 residents. The city serves as the county seat of Tulsa County, the most densely populated county in Oklahoma, with urban development extending into Osage, Rogers, and Wagoner counties. The flag of Tulsa consists of an upper navy blue half and a lower beige half, separated by a gold horizontal line, with a gold Osage shield punctuating the left third. The shield contains a red circle, and a beige six-pointed star centered within the circle. The flag is notable for being one of the few modern flags to utilize beige in its design – a color often associated with faded dyes on flags from usage. 4K Resolution.