Barangay Mallalatang Tunggui

Classified as a small barangay, Barangay Mallalatang Tunggui is one of the administrative divisions of Reina Mercedes in Isabela, Cagayan Valley, Philippines.

According to the 2020 Philippine census, Barangay Mallalatang Tunggui had a population of 779. This made it the 16th largest of 20 barangays in Reina Mercedes by population, placing it among the smaller barangays of the municipality. Residents of Barangay Mallalatang Tunggui accounted for approximately 2.79% of the total population of Reina Mercedes, which stood at 27,900 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Mallalatang Tunggui moving from 742 residents to 779 residents, an intercensal change of +5.0%. The trajectory indicates a growing community. Barangay Mallalatang Tunggui is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Reina Mercedes is a municipality comprising 20 barangays, and serves as the governing unit directly responsible for local services in Barangay Mallalatang Tunggui, including public health, sanitation, peace and order, and civil registration. Within the wider province of Isabela, which contains 1,055 barangays across its component cities and municipalities, Barangay Mallalatang Tunggui ranks 783rd by 2020 population. Isabela is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Mallalatang Tunggui is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.