Biloxi (pronounce /bəˈlʌksi/) is a city in Harrison County, Mississippi, in the United States. The 2000 census recorded the population as 50,644. Biloxi is co–county seat with the larger city Gulfport, in the Gulfport–Biloxi, Mississippi Metropolitan Statistical Area, which is included in the Gulfport–Biloxi–Pascagoula, Mississippi Combined Statistical Area.