Barangay Tagbacan Silangan

Barangay Tagbacan Silangan is a small barangay in the municipality of Catanauan, located in the province of Quezon, in the CALABARZON region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Tagbacan Silangan had a population of 1,089. This made it the 28th largest of 46 barangays in Catanauan by population, placing it in the middle tier of the municipality. Residents of Barangay Tagbacan Silangan accounted for approximately 1.50% of the total population of Catanauan, which stood at 72,752 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Tagbacan Silangan moving from 1,201 residents to 1,089 residents, an intercensal change of -9.3%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay Tagbacan Silangan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Catanauan is a municipality comprising 46 barangays, and serves as the governing unit directly responsible for local services in Barangay Tagbacan Silangan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Quezon, which contains 1,242 barangays across its component cities and municipalities, Barangay Tagbacan Silangan ranks 563rd by 2020 population. Quezon is classified as a 1st 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.