Barangay Nagsantaan

Classified as a very small barangay, Barangay Nagsantaan is one of the administrative divisions of Cabugao in Ilocos Sur, Ilocos Region, Philippines.

According to the 2020 Philippine census, Barangay Nagsantaan had a population of 381. This made it the 32nd largest of 33 barangays in Cabugao by population, placing it among the smaller barangays of the municipality. Residents of Barangay Nagsantaan accounted for approximately 0.98% of the total population of Cabugao, which stood at 38,884 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Nagsantaan moving from 409 residents to 381 residents, an intercensal change of -6.8%. The trajectory indicates a contracting community. Barangay Nagsantaan is officially classified 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 Nagsantaan, 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 Nagsantaan ranks 656th 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.