Gulfport is the second-largest city in Mississippi after the state capital, Jackson. Along with Biloxi, Gulfport is the other county seat of Harrison County and the larger of the two principal cities of the Gulfport-Biloxi, Mississippi Metropolitan Statistical Area, which is included in the Gulfport-Biloxi-Pascagoula, Mississippi Combined Statistical Area. As of the 2010 census, the city of Gulfport had a total population of 67,793, with nearly 400,000 in the metro area as of 2018. It is also home to the US Navy Atlantic Fleet Seabees.