Barangay Subadi Sur

Barangay Subadi Sur forms part of Burgos, a municipality in Ilocos Sur, and is classified as a very small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Subadi Sur had a population of 161. This made it the 25th largest of 26 barangays in Burgos by population, placing it among the smaller barangays of the municipality. Residents of Barangay Subadi Sur accounted for approximately 1.26% of the total population of Burgos, which stood at 12,793 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Subadi Sur moving from 167 residents to 161 residents, an intercensal change of -3.6%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay Subadi Sur as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Burgos is a municipality comprising 26 barangays, and serves as the governing unit directly responsible for local services in Barangay Subadi Sur, including public health, sanitation, peace and order, and civil registration. Within the wider province of Ilocos Sur, which contains 768 barangays across its component cities and municipalities, Barangay Subadi Sur ranks 761st by 2020 population. Ilocos Sur is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Like every Philippine barangay, Barangay Subadi Sur is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.