Together with the San Agustin Church in Manila, Nuestra Señora de la Asuncion Church in Ilocos Sur and Sto. Tomas de Villanueva Parish Church in Iloilo, the Saint Augustine Church of Ilocos Norte was designated as UNESCO World Heritage Site under the collective group of Baroque Churches of the Philippines in 1993. The church more commonly known as Paoay Church was also declared as a National Cultural Treasure by the Philippine government in 1973.