Barangay San Isidro (Pob.)

Situated in Biliran, Biliran, Barangay San Isidro (Pob.) is one of 11 barangays that make up the municipality within Eastern Visayas.

According to the 2020 Philippine census, Barangay San Isidro (Pob.) had a population of 2,891. This made it the 1st largest of 11 barangays in Biliran by population, placing it among the most populous barangays of the municipality. Residents of Barangay San Isidro (Pob.) accounted for approximately 16.37% of the total population of Biliran, which stood at 17,662 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Isidro (Pob.) moving from 2,926 residents to 2,891 residents, an intercensal change of -1.2%. The trajectory indicates a broadly stable community. Barangay San Isidro (Pob.) is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Biliran is a municipality comprising 11 barangays, and serves as the governing unit directly responsible for local services in Barangay San Isidro (Pob.), including public health, sanitation, peace and order, and civil registration. Within the wider province of Biliran, which contains 132 barangays across its component cities and municipalities, Barangay San Isidro (Pob.) ranks 11th by 2020 population. Biliran is classified as a 4th 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.