Barangay Guiset Sur (Pob.)

Classified as a mid-sized barangay, Barangay Guiset Sur (Pob.) is one of the administrative divisions of San Manuel in Pangasinan, Ilocos Region, Philippines.

According to the 2020 Philippine census, Barangay Guiset Sur (Pob.) had a population of 4,821. This made it the 5th largest of 14 barangays in San Manuel by population, placing it in the upper half of the municipality. Residents of Barangay Guiset Sur (Pob.) accounted for approximately 8.88% of the total population of San Manuel, which stood at 54,271 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Guiset Sur (Pob.) moving from 5,039 residents to 4,821 residents, an intercensal change of -4.3%. The trajectory indicates a contracting community. Barangay Guiset Sur (Pob.) is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Manuel is a municipality comprising 14 barangays, and serves as the governing unit directly responsible for local services in Barangay Guiset Sur (Pob.), 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 Guiset Sur (Pob.) ranks 89th 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.

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.