Jackson is the capital and most populous city of the U.S. state of Mississippi. The city sits on the Pearl River and is located in the greater Jackson Prairie region of Mississippi. Along with Raymond, Jackson is one of two county seats for Hinds County. The city had a population of 153,701 at the 2020 census, a decline of 11.42% from 173,514 since the 2010 census, representing the largest decline in population during the decade of any major U.S. city. The Jackson metropolitan area is the largest metropolitan area located entirely in the state and the tenth-largest urban area in the Deep South, with 592,000 residents in 2020.