Barangay Buenavista

Barangay Buenavista forms part of Sergio osmeña Sr., a municipality in Zamboanga Del Norte, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Buenavista had a population of 781. This made it the 15th largest of 39 barangays in Sergio osmeña Sr. by population, placing it in the middle tier of the municipality. Residents of Barangay Buenavista accounted for approximately 2.45% of the total population of Sergio osmeña Sr., which stood at 31,942 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Buenavista changed from 694 to 781, a shift of +12.5% over the five-year period. This places the barangay among those with growing populations in Sergio osmeña Sr.. The Philippine Statistics Authority classifies Barangay Buenavista as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Sergio osmeña Sr. is a municipality comprising 39 barangays, and serves as the governing unit directly responsible for local services in Barangay Buenavista, including public health, sanitation, peace and order, and civil registration. Within the wider province of Zamboanga Del Norte, which contains 691 barangays across its component cities and municipalities, Barangay Buenavista ranks 491st by 2020 population. Zamboanga Del Norte is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Buenavista 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.