"51777"^^ . "+8" . "Irosin is a second class municipality in the province of Sorsogon, Philippines. It is the only land-locked municipality of the province. According to the 2010 census, it has a population of 51,777 people."@en . . . . . "Mayor"@en . "56" . "Irosin"@en . . . . "1.4987e+08"^^ . . "4707" . . .