Birmingham is a city in the north central region of Alabama. Birmingham is the county seat of Jefferson County, Alabama's most populous county. As of the 2023 census estimates, Birmingham had a population of 196,910 down 2% from the 2020 census, making it Alabama's second-most populous city after Huntsville. The broader Birmingham metropolitan area had a 2020 population of 1,115,289, and is the largest metropolitan area in Alabama as well as the 47th-most populous in the United States. Birmingham serves as an important regional hub and is associated with the Deep South, Piedmont, and Appalachian regions of the nation.