Barangay Poblacion Barangay 3

Barangay Poblacion Barangay 3 forms part of General Macarthur, a municipality in Eastern Samar, and is classified as a very small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Poblacion Barangay 3 had a population of 397. This made it the 13th largest of 30 barangays in General Macarthur by population, placing it in the middle tier of the municipality. Residents of Barangay Poblacion Barangay 3 accounted for approximately 2.75% of the total population of General Macarthur, which stood at 14,411 in the same census year.

The barangay recorded 442 residents in the 2015 intercensal count and 397 residents in the 2020 Census — a net change of -10.2%, consistent with a contracting settlement. The Philippine Statistics Authority classifies Barangay Poblacion Barangay 3 as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

General Macarthur is a municipality comprising 30 barangays, and serves as the governing unit directly responsible for local services in Barangay Poblacion Barangay 3, including public health, sanitation, peace and order, and civil registration. Within the wider province of Eastern Samar, which contains 597 barangays across its component cities and municipalities, Barangay Poblacion Barangay 3 ranks 422nd by 2020 population. Eastern Samar 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.