Barangay Tagbacan Ilaya

Classified as a small barangay, Barangay Tagbacan Ilaya is one of the administrative divisions of Catanauan in Quezon, CALABARZON, Philippines.

According to the 2020 Philippine census, Barangay Tagbacan Ilaya had a population of 1,931. This made it the 14th largest of 46 barangays in Catanauan by population, placing it in the upper half of the municipality. Residents of Barangay Tagbacan Ilaya accounted for approximately 2.65% 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 Ilaya moving from 1,876 residents to 1,931 residents, an intercensal change of +2.9%. The trajectory indicates a growing community. Barangay Tagbacan Ilaya is officially classified 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 Ilaya, 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 Ilaya ranks 318th 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.