Barangay San Andres

Situated in Baco, Oriental Mindoro, Barangay San Andres is one of 27 barangays that make up the municipality within MIMAROPA Region.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Andres had a population of 321. This made it the 27th largest of 27 barangays in Baco by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Andres accounted for approximately 0.81% of the total population of Baco, which stood at 39,817 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Andres moving from 284 residents to 321 residents, an intercensal change of +13.0%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay San Andres as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Baco is a municipality comprising 27 barangays, and serves as the governing unit directly responsible for local services in Barangay San Andres, including public health, sanitation, peace and order, and civil registration. Within the wider province of Oriental Mindoro, which contains 426 barangays across its component cities and municipalities, Barangay San Andres ranks 426th by 2020 population. Oriental Mindoro 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.