Barangay Apiat

Barangay Apiat forms part of Aurora, a municipality in Isabela, and is classified as a small barangay.

According to the 2020 Philippine census, Barangay Apiat had a population of 594. This made it the 25th largest of 33 barangays in Aurora by population, placing it among the smaller barangays of the municipality. Residents of Barangay Apiat accounted for approximately 1.62% of the total population of Aurora, which stood at 36,621 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Apiat moving from 568 residents to 594 residents, an intercensal change of +4.6%. The trajectory indicates a growing community. Barangay Apiat is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Aurora is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Apiat, including public health, sanitation, peace and order, and civil registration. Within the wider province of Isabela, which contains 1,055 barangays across its component cities and municipalities, Barangay Apiat ranks 884th by 2020 population. Isabela 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.