Barangay Upper Timonan

Classified as a small barangay, Barangay Upper Timonan is one of the administrative divisions of Dumingag in Zamboanga Del Sur, Zamboanga Peninsula, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Upper Timonan had a population of 1,272. This made it the 16th largest of 44 barangays in Dumingag by population, placing it in the middle tier of the municipality. Residents of Barangay Upper Timonan accounted for approximately 2.60% of the total population of Dumingag, which stood at 48,881 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Upper Timonan moving from 1,254 residents to 1,272 residents, an intercensal change of +1.4%. The trajectory indicates a slowly expanding community. The Philippine Statistics Authority classifies Barangay Upper Timonan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Dumingag is a municipality comprising 44 barangays, and serves as the governing unit directly responsible for local services in Barangay Upper Timonan, 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 Timonan ranks 275th 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.