Barangay 3 Poblacion

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

According to the 2020 Philippine census, Barangay 3 Poblacion had a population of 186. This made it the 16th largest of 16 barangays in Mercedes by population, placing it among the smaller barangays of the municipality. Residents of Barangay 3 Poblacion accounted for approximately 3.04% of the total population of Mercedes, which stood at 6,112 in the same census year.

Census comparisons between 2015 and 2020 show Barangay 3 Poblacion moving from 198 residents to 186 residents, an intercensal change of -6.1%. The trajectory indicates a contracting community. Barangay 3 Poblacion is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Mercedes is a municipality comprising 16 barangays, and serves as the governing unit directly responsible for local services in Barangay 3 Poblacion, 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 3 Poblacion ranks 559th 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.

Like every Philippine barangay, Barangay 3 Poblacion 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.