', officially the ', is a of the Philippines in the province of,. According to the, it has a population of people.BarangaysSan Quintin is politically subdivided into 21 barangays. Alac Baligayan Bantog Bolintaguen Cabangaran Cabalaoangan Calomboyan Carayacan Casantamaria-an Gonzalo Labuan Lagasit Lumayao Mabini Mantacdang Nangapugan San Pedro Ungib Poblacion Zone I Poblacion Zone II Poblacion Zone IIIClimate