Barangay San Marcelino

Situated in Taysan, Batangas, Barangay San Marcelino is one of 20 barangays that make up the municipality within CALABARZON.

According to the 2020 Philippine census, Barangay San Marcelino had a population of 1,917. This made it the 11th largest of 20 barangays in Taysan by population, placing it in the middle tier of the municipality. Residents of Barangay San Marcelino accounted for approximately 4.78% of the total population of Taysan, which stood at 40,146 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay San Marcelino changed from 1,807 to 1,917, a shift of +6.1% over the five-year period. This places the barangay among those with growing populations in Taysan. Barangay San Marcelino is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Taysan is a municipality comprising 20 barangays, and serves as the governing unit directly responsible for local services in Barangay San Marcelino, including public health, sanitation, peace and order, and civil registration. Within the wider province of Batangas, which contains 1,078 barangays across its component cities and municipalities, Barangay San Marcelino ranks 570th by 2020 population. Batangas 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.