Barangay San Antonio

Barangay San Antonio forms part of Bombon, a municipality in Camarines Sur, and is classified as a mid-sized barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Antonio had a population of 4,372. This made it the 1st largest of 8 barangays in Bombon by population, placing it among the most populous barangays of the municipality. Residents of Barangay San Antonio accounted for approximately 24.30% of the total population of Bombon, which stood at 17,995 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay San Antonio changed from 4,156 to 4,372, a shift of +5.2% over the five-year period. This places the barangay among those with growing populations in Bombon. The Philippine Statistics Authority classifies Barangay San Antonio as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Bombon is a municipality comprising 8 barangays, and serves as the governing unit directly responsible for local services in Barangay San Antonio, 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 San Antonio ranks 70th 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.

Barangay San Antonio is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.