Barangay Bangaoilan West

Barangay Bangaoilan West forms part of Bangar, a municipality in La Union, and is classified as a small barangay.

According to the 2020 Philippine census, Barangay Bangaoilan West had a population of 1,046. This made it the 22nd largest of 33 barangays in Bangar by population, placing it in the middle tier of the municipality. Residents of Barangay Bangaoilan West accounted for approximately 2.75% of the total population of Bangar, which stood at 38,041 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Bangaoilan West changed from 912 to 1,046, a shift of +14.7% over the five-year period. This places the barangay among those with growing populations in Bangar. Barangay Bangaoilan West is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Bangar is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Bangaoilan West, 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 Bangaoilan West ranks 334th 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.

Barangay Bangaoilan West is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.