Burlington, Romaryland, is a city, and county seat of Concord County, and is the most Populus city in the state of Romaryland, with a population of 852,529 people as of the 2021 Census, it is the 37th most Populus city in the United States. As of the 2020 census, the population of the Burlington metropolitan area was estimated to be 3,538,327, making it the 20th-largest metropolitan area in the country.