- Port-au-Prince (/ˌpɔːrt oʊ ˈprɪns/ PORT oh PRINSS; French: [pɔʁ o pʁɛ̃s]; Haitian Creole: Pòtoprens, [pɔtopɣɛ̃s]) is the capital and most populous city of Haiti. The city’s population was estimated at 1,200,000 in 2022 with the metropolitan area estimated at a population of 2,618,894. The metropolitan area is defined by the IHSI as including the communes of Port-au-Prince, Delmas, Cite Soleil, Tabarre, Carrefour and Pétion-Ville.