City and commune in Ouémé, Benin Porto-Novo Hogbonu, Àjàshé Ilé City and commune View of Porto-Novo Flag Porto-Novo Location of Porto-Novo in Benin Coordinates: 6°29′50″N 2°36′18″Eufeff / ufeff6.49722°N 2.60500°Eufeff / 6.49722; 2.60500Coordinates: 6°29′50″N 2°36′18″Eufeff / ufeff6.49722°N 2.60500°Eufeff / 6.49722; 2.60500 Country Benin Department Ouémé Established 16th century Government •xa0Mayor Emmanuel Zossou Area •xa0City and commune 110xa0km2 (40xa0sqxa0mi) •xa0Metro 110xa0km2 (40xa0sqxa0mi) Elevation 38xa0m (125xa0ft) Population (2009)[1] •xa0City and commune 267,191 •xa0Density 2,400/km2 (6,300/sqxa0mi) Website Official website