Barangay Senior

Barangay Senior is a very small barangay in the municipality of San Pablo, located in the province of Zamboanga Del Sur, in the Zamboanga Peninsula region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Senior had a population of 375. This made it the 27th largest of 28 barangays in San Pablo by population, placing it among the smaller barangays of the municipality. Residents of Barangay Senior accounted for approximately 1.41% of the total population of San Pablo, which stood at 26,648 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Senior changed from 417 to 375, a shift of -10.1% over the five-year period. This places the barangay among those with contracting populations in San Pablo. The Philippine Statistics Authority classifies Barangay Senior as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Pablo is a municipality comprising 28 barangays, and serves as the governing unit directly responsible for local services in Barangay Senior, 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 Senior ranks 659th 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.

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.