Barangay San Juan

Situated in San Isidro, Northern Samar, Barangay San Juan is one of 14 barangays that make up the municipality within Eastern Visayas.

According to the 2020 Philippine census, Barangay San Juan had a population of 2,365. This made it the 4th largest of 14 barangays in San Isidro by population, placing it in the upper half of the municipality. Residents of Barangay San Juan accounted for approximately 8.49% of the total population of San Isidro, which stood at 27,867 in the same census year.

The barangay recorded 2,426 residents in the 2015 intercensal count and 2,365 residents in the 2020 Census — a net change of -2.5%, consistent with a contracting settlement. Barangay San Juan is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Isidro is a municipality comprising 14 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 51st 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.

Like every Philippine barangay, Barangay San Juan 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.