Barangay Abra

Situated in City of Santiago, Isabela, Barangay Abra is one of 37 barangays that make up the city within Cagayan Valley.

According to the 2020 Philippine census, Barangay Abra had a population of 1,946. This made it the 27th largest of 37 barangays in City of Santiago by population, placing it among the smaller barangays of the city. Residents of Barangay Abra accounted for approximately 1.31% of the total population of City of Santiago, which stood at 148,580 in the same census year.

The barangay recorded 1,756 residents in the 2015 intercensal count and 1,946 residents in the 2020 Census — a net change of +10.8%, consistent with a growing settlement. Barangay Abra is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

City of Santiago is a city comprising 37 barangays, and serves as the governing unit directly responsible for local services in Barangay Abra, 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 Abra ranks 278th 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.

Barangay Abra 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.