Barangay Mabangug

Situated in Cabagan, Isabela, Barangay Mabangug is one of 26 barangays that make up the municipality within Cagayan Valley.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Mabangug had a population of 431. This made it the 26th largest of 26 barangays in Cabagan by population, placing it among the smaller barangays of the municipality. Residents of Barangay Mabangug accounted for approximately 0.80% of the total population of Cabagan, which stood at 53,897 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Mabangug changed from 489 to 431, a shift of -11.9% over the five-year period. This places the barangay among those with contracting populations in Cabagan. The Philippine Statistics Authority classifies Barangay Mabangug as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Cabagan is a municipality comprising 26 barangays, and serves as the governing unit directly responsible for local services in Barangay Mabangug, 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 Mabangug ranks 978th 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.

The barangay's legislative and executive affairs are handled by a Punong Barangay and the Sangguniang Barangay, elected nationwide during the Barangay and SK Elections. The next BSKE is scheduled for Monday, November 2, 2026, following the synchronized election schedule set by COMELEC Resolution No. 11191.