Sagay, officially the City of Sagay, is a component city in the province of Negros Occidental, Philippines. According to the 2020 census, it has …Sagay, officially the City of Sagay, is a component city in the province of Negros Occidental, Philippines. According to the 2020 census, it has a population of 148,894 people. The name of the city comes from the semi-spherical shell called "sigay", which can be found in the area.