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San Mateo, officially the Municipality of San Mateo (Tagalog: Bayan ng 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 (Montalban) to the north.

SM City San Mateo is a shopping mall owned by the largest mall developer in the Philippines, SM Prime Holdings. It is located along Gen. Luna Avenue, Brgy. Ampid 1, San Mateo, Rizal. This first major mall of San Mateo opens on May 15, 2015, being the fourth SM Supermall in Rizal Province after SM City Taytay, SM City Masinag and SM Center Angono, and the 52nd SM Supermall in the country.

San Mateo National High School (SMNHS) is a government-funded secondary educational institution located in the Municipality of San Mateo, Rizal in the Philippines.