Barangay San Isidro

Barangay San Isidro is a mid-sized barangay in the municipality of Sulat, located in the province of Eastern Samar, in the Eastern Visayas region of the Philippines.

According to the 2020 Philippine census, Barangay San Isidro had a population of 2,059. This made it the 1st largest of 18 barangays in Sulat by population, placing it among the most populous barangays of the municipality. Residents of Barangay San Isidro accounted for approximately 13.07% of the total population of Sulat, which stood at 15,758 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Isidro moving from 1,904 residents to 2,059 residents, an intercensal change of +8.1%. The trajectory indicates a growing community. Barangay San Isidro is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Sulat is a municipality comprising 18 barangays, and serves as the governing unit directly responsible for local services in Barangay San Isidro, 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 San Isidro ranks 34th 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.

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.