Barangay Buenos Aires

Barangay Buenos Aires is a small barangay in the municipality of San Fernando, located in the province of Masbate, in the Bicol Region region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Buenos Aires had a population of 696. This made it the 12th largest of 26 barangays in San Fernando by population, placing it in the middle tier of the municipality. Residents of Barangay Buenos Aires accounted for approximately 3.22% of the total population of San Fernando, which stood at 21,600 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Buenos Aires moving from 691 residents to 696 residents, an intercensal change of +0.7%. The trajectory indicates a slowly expanding community. The Philippine Statistics Authority classifies Barangay Buenos Aires as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Fernando is a municipality comprising 26 barangays, and serves as the governing unit directly responsible for local services in Barangay Buenos Aires, including public health, sanitation, peace and order, and civil registration. Within the wider province of Masbate, which contains 550 barangays across its component cities and municipalities, Barangay Buenos Aires ranks 462nd by 2020 population. Masbate 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.