Barangay Upper Sang-an

Classified as a small barangay, Barangay Upper Sang-an is one of the administrative divisions of Labangan in Zamboanga Del Sur, Zamboanga Peninsula, Philippines.

According to the 2020 Philippine census, Barangay Upper Sang-an had a population of 1,453. This made it the 16th largest of 25 barangays in Labangan by population, placing it in the middle tier of the municipality. Residents of Barangay Upper Sang-an accounted for approximately 3.28% of the total population of Labangan, which stood at 44,262 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Upper Sang-an moving from 1,366 residents to 1,453 residents, an intercensal change of +6.4%. The trajectory indicates a growing community. Barangay Upper Sang-an is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Labangan is a municipality comprising 25 barangays, and serves as the governing unit directly responsible for local services in Barangay Upper Sang-an, including public health, sanitation, peace and order, and civil registration. Within the wider province of Zamboanga Del Sur, which contains 779 barangays across its component cities and municipalities, Barangay Upper Sang-an ranks 230th by 2020 population. Zamboanga Del Sur is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Upper Sang-an 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.