Barangay Santo Tomas

Situated in Sulat, Eastern Samar, Barangay Santo Tomas is one of 18 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 Santo Tomas had a population of 1,462. This made it the 4th largest of 18 barangays in Sulat by population, placing it in the upper half of the municipality. Residents of Barangay Santo Tomas accounted for approximately 9.28% of the total population of Sulat, which stood at 15,758 in the same census year.

The barangay recorded 1,537 residents in the 2015 intercensal count and 1,462 residents in the 2020 Census — a net change of -4.9%, consistent with a contracting settlement. The Philippine Statistics Authority classifies Barangay Santo Tomas 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 Santo Tomas, 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 Santo Tomas ranks 80th 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.