Jackson is the capital of and the most populous city in the U.S. state 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 significant decline from 173,514, or 11.42%, since the 2010 census, representing the largest decline in population during the decade of any major U.S. city. Jackson is the anchor for the Jackson metropolitan statistical area, the largest metropolitan area located entirely in the state and the tenth-largest urban area in the Deep South. With a 2020 population of nearly 600,000, metropolitan Jackson is home to over one-fifth of Mississippi's population. The city sits on the Pearl River and is located in the greater Jackson Prairie region of Mississippi. Jackson is the only city in Mississippi with a population exceeding 100,000 people.

Mississippi is a state in the Southeastern region of the United States. It borders Tennessee to the north, Alabama to the east, the Gulf of Mexico to the south, Louisiana to the southwest, and Arkansas to the northwest. Mississippi's western boundary is largely defined by the Mississippi River, or its historical course. Mississippi is the 32nd largest by area and 35th-most populous of the 50 U.S. states and has the lowest per-capita income. Jackson is both the state's capital and largest city. Greater Jackson is the state's most populous metropolitan area, with a population of 591,978 in 2020.