Barangay Calumboyan Sur

Situated in Mangatarem, Pangasinan, Barangay Calumboyan Sur is one of 82 barangays that make up the municipality within Ilocos Region.

According to the 2020 Philippine census, Barangay Calumboyan Sur had a population of 845. This made it the 43rd largest of 82 barangays in Mangatarem by population, placing it in the middle tier of the municipality. Residents of Barangay Calumboyan Sur accounted for approximately 1.07% of the total population of Mangatarem, which stood at 79,323 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Calumboyan Sur moving from 871 residents to 845 residents, an intercensal change of -3.0%. The trajectory indicates a contracting community. Barangay Calumboyan Sur is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Mangatarem is a municipality comprising 82 barangays, and serves as the governing unit directly responsible for local services in Barangay Calumboyan Sur, including public health, sanitation, peace and order, and civil registration. Within the wider province of Pangasinan, which contains 1,364 barangays across its component cities and municipalities, Barangay Calumboyan Sur ranks 1235th by 2020 population. Pangasinan is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Calumboyan Sur 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.