Barangay Tanquigan

Barangay Tanquigan forms part of City of San Fernando, a city in La Union, and is classified as a small barangay.

According to the 2020 Philippine census, Barangay Tanquigan had a population of 1,226. This made it the 33rd largest of 59 barangays in City of San Fernando by population, placing it in the middle tier of the city. Residents of Barangay Tanquigan accounted for approximately 0.98% 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 Tanquigan changed from 1,074 to 1,226, a shift of +14.2% over the five-year period. This places the barangay among those with growing populations in City of San Fernando. Barangay Tanquigan is officially classified 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 Tanquigan, 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 Tanquigan ranks 265th 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 Tanquigan 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.