Barangay Tambangan

Situated in San Jose, Camarines Sur, Barangay Tambangan is one of 29 barangays that make up the municipality within Bicol Region.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Tambangan had a population of 1,824. This made it the 10th largest of 29 barangays in San Jose by population, placing it in the middle tier of the municipality. Residents of Barangay Tambangan accounted for approximately 4.15% of the total population of San Jose, which stood at 43,973 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Tambangan moving from 1,646 residents to 1,824 residents, an intercensal change of +10.8%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Tambangan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Jose is a municipality comprising 29 barangays, and serves as the governing unit directly responsible for local services in Barangay Tambangan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Camarines Sur, which contains 1,063 barangays across its component cities and municipalities, Barangay Tambangan ranks 404th by 2020 population. Camarines Sur 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.