Barangay Santiago

Situated in Malvar, Batangas, Barangay Santiago is one of 15 barangays that make up the municipality within CALABARZON.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Santiago had a population of 8,235. This made it the 2nd largest of 15 barangays in Malvar by population, placing it among the most populous barangays of the municipality. Residents of Barangay Santiago accounted for approximately 12.79% of the total population of Malvar, which stood at 64,379 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santiago moving from 7,754 residents to 8,235 residents, an intercensal change of +6.2%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Santiago as urban, reflecting the density and built-up character of the area.

Malvar is a municipality comprising 15 barangays, and serves as the governing unit directly responsible for local services in Barangay Santiago, 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 Santiago ranks 38th 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.