Miami, officially the City of Miami, is a coastal metropolis and the county seat of Miami-Dade County in South Florida. With a population of 442,241 as of the 2020 census, it is the second-most populous city in Florida and 11th-most populous city in the Southeast. The Miami metropolitan area is the ninth-largest in the United States with a population of 6.138 million in 2020. The city has the third largest skyline in the U.S. with over 300 high-rises, 58 of which exceed 491 ft