Barangay Butubut Oeste

Classified as a small barangay, Barangay Butubut Oeste is one of the administrative divisions of Balaoan in La Union, Ilocos Region, Philippines.

According to the 2020 Philippine census, Barangay Butubut Oeste had a population of 583. This made it the 34th largest of 36 barangays in Balaoan by population, placing it among the smaller barangays of the municipality. Residents of Barangay Butubut Oeste accounted for approximately 1.45% of the total population of Balaoan, which stood at 40,339 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Butubut Oeste changed from 687 to 583, a shift of -15.1% over the five-year period. This places the barangay among those with contracting populations in Balaoan. Barangay Butubut Oeste is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Balaoan is a municipality comprising 36 barangays, and serves as the governing unit directly responsible for local services in Barangay Butubut Oeste, 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 Butubut Oeste ranks 507th 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.

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.