Barangay Centro 3 (Pob.)

Situated in Luna, Isabela, Barangay Centro 3 (Pob.) is one of 19 barangays that make up the municipality within Cagayan Valley.

According to the 2020 Philippine census, Barangay Centro 3 (Pob.) had a population of 644. This made it the 15th largest of 19 barangays in Luna by population, placing it among the smaller barangays of the municipality. Residents of Barangay Centro 3 (Pob.) accounted for approximately 3.11% of the total population of Luna, which stood at 20,697 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Centro 3 (Pob.) moving from 646 residents to 644 residents, an intercensal change of -0.3%. The trajectory indicates a broadly stable community. Barangay Centro 3 (Pob.) is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Luna is a municipality comprising 19 barangays, and serves as the governing unit directly responsible for local services in Barangay Centro 3 (Pob.), 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 Centro 3 (Pob.) ranks 857th 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.