Barangay Datagan

Situated in Siayan, Zamboanga Del Norte, Barangay Datagan is one of 22 barangays that make up the municipality within Zamboanga Peninsula.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Datagan had a population of 1,316. This made it the 14th largest of 22 barangays in Siayan by population, placing it in the middle tier of the municipality. Residents of Barangay Datagan accounted for approximately 3.63% of the total population of Siayan, which stood at 36,236 in the same census year.

The barangay recorded 1,125 residents in the 2015 intercensal count and 1,316 residents in the 2020 Census — a net change of +17.0%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay Datagan 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 Datagan, 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 Datagan ranks 281st 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.

Like every Philippine barangay, Barangay Datagan is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.