Barangay Nagsincaoan

Situated in Cabugao, Ilocos Sur, Barangay Nagsincaoan is one of 33 barangays that make up the municipality within Ilocos Region.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Nagsincaoan had a population of 418. This made it the 31st largest of 33 barangays in Cabugao by population, placing it among the smaller barangays of the municipality. Residents of Barangay Nagsincaoan accounted for approximately 1.07% of the total population of Cabugao, which stood at 38,884 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Nagsincaoan moving from 426 residents to 418 residents, an intercensal change of -1.9%. The trajectory indicates a broadly stable community. The Philippine Statistics Authority classifies Barangay Nagsincaoan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Cabugao is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Nagsincaoan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Ilocos Sur, which contains 768 barangays across its component cities and municipalities, Barangay Nagsincaoan ranks 642nd by 2020 population. Ilocos Sur 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.