Baltimore is the most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 census, it is the 30th-most populou…Baltimore is the most populous city in the U.S. state of Maryland. With a population of 585,708 at the 2020 census, it is the 30th-most populous US city. Baltimore was designated as an independent city by the Constitution of Maryland in 1851, and is the most populous independent city in the nation. As of 2020, the population of the Baltimore metropolitan area was 2,838,327, the 20th-largest metropolitan area in the country. The city is also part of the Washington–Baltimore combined statistical area, which had a 2020 population of 9,973,383, the third-largest in the country. Though Baltimore is not located within or under the administrative jurisdiction of any county in the state, it is part of the Central Maryland region, together with the surrounding county that shares its name.
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