Barangay Arua-ay

Barangay Arua-ay forms part of Piddig, a municipality in Ilocos Norte, and is classified as a very small barangay.

According to the 2020 Philippine census, Barangay Arua-ay had a population of 382. This made it the 22nd largest of 23 barangays in Piddig by population, placing it among the smaller barangays of the municipality. Residents of Barangay Arua-ay accounted for approximately 1.70% of the total population of Piddig, which stood at 22,475 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Arua-ay moving from 381 residents to 382 residents, an intercensal change of +0.3%. The trajectory indicates a slowly expanding community. Barangay Arua-ay is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Piddig is a municipality comprising 23 barangays, and serves as the governing unit directly responsible for local services in Barangay Arua-ay, 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 Arua-ay ranks 526th 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 Arua-ay 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.