Barangay Calanutian

Barangay Calanutian forms part of Sinait, a municipality in Ilocos Sur, and is classified as a small barangay.

According to the 2020 Philippine census, Barangay Calanutian had a population of 521. This made it the 21st largest of 44 barangays in Sinait by population, placing it in the middle tier of the municipality. Residents of Barangay Calanutian accounted for approximately 2.00% of the total population of Sinait, which stood at 25,998 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Calanutian changed from 569 to 521, a shift of -8.4% over the five-year period. This places the barangay among those with contracting populations in Sinait. Barangay Calanutian is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Sinait is a municipality comprising 44 barangays, and serves as the governing unit directly responsible for local services in Barangay Calanutian, 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 Calanutian ranks 564th 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.