Barangay Poblacion 3

Situated in Mamburao, Occidental Mindoro, Barangay Poblacion 3 is one of 15 barangays that make up the municipality within MIMAROPA Region.

According to the 2020 Philippine census, Barangay Poblacion 3 had a population of 280. This made it the 15th largest of 15 barangays in Mamburao by population, placing it among the smaller barangays of the municipality. Residents of Barangay Poblacion 3 accounted for approximately 0.59% of the total population of Mamburao, which stood at 47,705 in the same census year.

The barangay recorded 218 residents in the 2015 intercensal count and 280 residents in the 2020 Census — a net change of +28.4%, consistent with a growing settlement. Barangay Poblacion 3 is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Mamburao is a municipality comprising 15 barangays, and serves as the governing unit directly responsible for local services in Barangay Poblacion 3, including public health, sanitation, peace and order, and civil registration. Within the wider province of Occidental Mindoro, which contains 164 barangays across its component cities and municipalities, Barangay Poblacion 3 ranks 160th by 2020 population. Occidental Mindoro is classified as a 2nd 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.