Aside from these five churches, another church which is inscribed in the UNESCO World Heritage List is the Vigan Cathedral under the inscription Historic Town of Vigan. The Philippine National Commission for Culture and the Arts (NCCA) has also designated the conservation and protection of more than 30 other Spanish-era churches to be of utmost importance. These were registered as National Cultural Treasures.
These churches were given priority status not just due to their historical value, but also based on the geographic representation of various regions across the nation: