Barangay Isabang

Barangay Isabang forms part of City of Tayabas, a city in Quezon, and is classified as a large barangay.

According to the 2020 Philippine census, Barangay Isabang had a population of 14,210. This made it the 1st largest of 66 barangays in City of Tayabas by population, placing it among the most populous barangays of the city. Residents of Barangay Isabang accounted for approximately 12.61% of the total population of City of Tayabas, which stood at 112,658 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Isabang changed from 8,654 to 14,210, a shift of +64.2% over the five-year period. This places the barangay among those with growing populations in City of Tayabas. Barangay Isabang is officially classified as urban, reflecting the density and built-up character of the area.

City of Tayabas is a city comprising 66 barangays, and serves as the governing unit directly responsible for local services in Barangay Isabang, 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 Isabang ranks 2nd 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.