Barangay San Juan

Barangay San Juan forms part of Mondragon, a municipality in Northern Samar, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Juan had a population of 1,738. This made it the 7th largest of 24 barangays in Mondragon by population, placing it in the upper half of the municipality. Residents of Barangay San Juan accounted for approximately 4.20% of the total population of Mondragon, which stood at 41,415 in the same census year.

The barangay recorded 1,404 residents in the 2015 intercensal count and 1,738 residents in the 2020 Census — a net change of +23.8%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay San Juan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Mondragon is a municipality comprising 24 barangays, and serves as the governing unit directly responsible for local services in Barangay San Juan, 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 San Juan ranks 97th 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.