Barangay Pedro F. Alviar

Barangay Pedro F. Alviar forms part of Vintar, a municipality in Ilocos Norte, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Pedro F. Alviar had a population of 923. This made it the 17th largest of 33 barangays in Vintar by population, placing it in the middle tier of the municipality. Residents of Barangay Pedro F. Alviar accounted for approximately 2.77% of the total population of Vintar, which stood at 33,339 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Pedro F. Alviar moving from 918 residents to 923 residents, an intercensal change of +0.5%. The trajectory indicates a slowly expanding community. The Philippine Statistics Authority classifies Barangay Pedro F. Alviar as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Vintar is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Pedro F. Alviar, including public health, sanitation, peace and order, and civil registration. Within the wider province of Ilocos Norte, which contains 559 barangays across its component cities and municipalities, Barangay Pedro F. Alviar ranks 299th by 2020 population. Ilocos Norte is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Pedro F. Alviar 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.