San Mateo is located in Tuguegarao City city, Philippines at the 16.8821, 121.5869 coordinates. Distance from San Mateo to other cities. are listed below, click on the city name to find distance between. Distance from San Mateo to Santiago 22 km, to Ilagan 44 km, to Solana 86 km. The green marker indicates the location of San Mateo.