Barangay Siboan-Otong

Situated in City of San Fernando, La Union, Barangay Siboan-Otong is one of 59 barangays that make up the city within Ilocos Region.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Siboan-Otong had a population of 885. This made it the 41st largest of 59 barangays in City of San Fernando by population, placing it in the middle tier of the city. Residents of Barangay Siboan-Otong accounted for approximately 0.70% of the total population of City of San Fernando, which stood at 125,640 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Siboan-Otong changed from 878 to 885, a shift of +0.8% over the five-year period. This places the barangay among those with slowly expanding populations in City of San Fernando. The Philippine Statistics Authority classifies Barangay Siboan-Otong as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

City of San Fernando is a city comprising 59 barangays, and serves as the governing unit directly responsible for local services in Barangay Siboan-Otong, including public health, sanitation, peace and order, and civil registration. Within the wider province of La Union, which contains 576 barangays across its component cities and municipalities, Barangay Siboan-Otong ranks 409th by 2020 population. La Union 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 Siboan-Otong 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.