Denver is the capital and most populous city of the U.S. State of Colorado. It is located in the South Platte River Valley on the western edge of the High Plains just east of the Front Range of the Rocky Mountains. With an estimated population of 735,538 in 2020, Denver is the 19th-most populous city in the United States, the fifth-most populous state capital, and the most populous city located in the Mountain states. The flag of Denver is the official flag of the City and County of Denver in Colorado. It was designed by a North High School student, Margaret Overbeck, and adopted in 1926. A zigzag white stripe horizontally separates a red field below from a blue field above, in which is centered a yellow circle, together forming a stylized depiction of the Sun in a blue sky above snow-capped mountains. The color yellow symbolizes gold in the state’s hills, and red the colored earth to which the word colorado refers. The circle’s centered position symbolizes Denver’s central location within the state. The white zigzag symbolizes Colorado’s Native American heritage. Full HD.