San Mateo, officially the Municipality of San Mateo, is a 1st class urban municipality in the province of Rizal, Philippines. According to the 2020 census, it has a population of 273,306. It is bordered by Quezon City to the west, Marikina and Antipolo to the south, and by the Municipality of Rodriguez to the north. San Mateo is approximately 24 kilometers east of Manila and 11 kilometers north of Antipolo, the provincial capital of Rizal.