Barangay Pio Del Pilar

Situated in Biri, Northern Samar, Barangay Pio Del Pilar is one of 8 barangays that make up the municipality within Eastern Visayas.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Pio Del Pilar had a population of 991. This made it the 5th largest of 8 barangays in Biri by population, placing it in the middle tier of the municipality. Residents of Barangay Pio Del Pilar accounted for approximately 8.79% of the total population of Biri, which stood at 11,274 in the same census year.

The barangay recorded 1,103 residents in the 2015 intercensal count and 991 residents in the 2020 Census — a net change of -10.2%, consistent with a contracting settlement. The Philippine Statistics Authority classifies Barangay Pio Del Pilar as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Biri is a municipality comprising 8 barangays, and serves as the governing unit directly responsible for local services in Barangay Pio Del Pilar, including public health, sanitation, peace and order, and civil registration. Within the wider province of Northern Samar, which contains 569 barangays across its component cities and municipalities, Barangay Pio Del Pilar ranks 224th by 2020 population. Northern 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.