Barangay San Isidro Sur

Situated in Binmaley, Pangasinan, Barangay San Isidro Sur is one of 33 barangays that make up the municipality within Ilocos Region.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Isidro Sur had a population of 2,566. This made it the 17th largest of 33 barangays in Binmaley by population, placing it in the middle tier of the municipality. Residents of Barangay San Isidro Sur accounted for approximately 2.95% of the total population of Binmaley, which stood at 86,881 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Isidro Sur moving from 2,634 residents to 2,566 residents, an intercensal change of -2.6%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay San Isidro Sur as urban, reflecting the density and built-up character of the area.

Binmaley is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay San Isidro 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 San Isidro Sur ranks 429th 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.