Barangay Siayan Proper (Pob.)

Barangay Siayan Proper (Pob.) is a mid-sized barangay in the municipality of Siayan, located in the province of Zamboanga Del Norte, in the Zamboanga Peninsula region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Siayan Proper (Pob.) had a population of 3,748. This made it the 1st largest of 22 barangays in Siayan by population, placing it among the most populous barangays of the municipality. Residents of Barangay Siayan Proper (Pob.) accounted for approximately 10.34% of the total population of Siayan, which stood at 36,236 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Siayan Proper (Pob.) moving from 3,931 residents to 3,748 residents, an intercensal change of -4.7%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay Siayan Proper (Pob.) as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Siayan is a municipality comprising 22 barangays, and serves as the governing unit directly responsible for local services in Barangay Siayan Proper (Pob.), 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 Siayan Proper (Pob.) ranks 30th 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.

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.