Barangay Pongpong

Situated in Santo Tomas, La Union, Barangay Pongpong is one of 24 barangays that make up the municipality within Ilocos Region.

According to the 2020 Philippine census, Barangay Pongpong had a population of 1,818. This made it the 7th largest of 24 barangays in Santo Tomas by population, placing it in the upper half of the municipality. Residents of Barangay Pongpong accounted for approximately 4.45% of the total population of Santo Tomas, which stood at 40,846 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Pongpong moving from 1,573 residents to 1,818 residents, an intercensal change of +15.6%. The trajectory indicates a growing community. Barangay Pongpong is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Santo Tomas is a municipality comprising 24 barangays, and serves as the governing unit directly responsible for local services in Barangay Pongpong, 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 Pongpong ranks 125th 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 Pongpong 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.