Barangay Poblacion

Barangay Poblacion forms part of San Agustin, a municipality in Surigao Del Sur, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Poblacion had a population of 962. This made it the 11th largest of 13 barangays in San Agustin by population, placing it among the smaller barangays of the municipality. Residents of Barangay Poblacion accounted for approximately 4.21% of the total population of San Agustin, which stood at 22,855 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Poblacion changed from 1,151 to 962, a shift of -16.4% over the five-year period. This places the barangay among those with contracting populations in San Agustin. The Philippine Statistics Authority classifies Barangay Poblacion as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Agustin is a municipality comprising 13 barangays, and serves as the governing unit directly responsible for local services in Barangay Poblacion, including public health, sanitation, peace and order, and civil registration. Within the wider province of Surigao Del Sur, which contains 309 barangays across its component cities and municipalities, Barangay Poblacion ranks 225th by 2020 population. Surigao Del 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 Poblacion 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.