Barangay Centro 4 (Pob.)

Classified as a very small barangay, Barangay Centro 4 (Pob.) is one of the administrative divisions of Aparri in Cagayan, Cagayan Valley, Philippines.

According to the 2020 Philippine census, Barangay Centro 4 (Pob.) had a population of 99. This made it the 39th largest of 42 barangays in Aparri by population, placing it among the smaller barangays of the municipality. Residents of Barangay Centro 4 (Pob.) accounted for approximately 0.14% of the total population of Aparri, which stood at 68,839 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Centro 4 (Pob.) moving from 82 residents to 99 residents, an intercensal change of +20.7%. The trajectory indicates a growing community. Barangay Centro 4 (Pob.) is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Aparri is a municipality comprising 42 barangays, and serves as the governing unit directly responsible for local services in Barangay Centro 4 (Pob.), including public health, sanitation, peace and order, and civil registration. Within the wider province of Cagayan, which contains 820 barangays across its component cities and municipalities, Barangay Centro 4 (Pob.) ranks 813th by 2020 population. Cagayan is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Like every Philippine barangay, Barangay Centro 4 (Pob.) is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.