Barangay San Agustin

Classified as a small barangay, Barangay San Agustin is one of the administrative divisions of Carmen in Agusan Del Norte, Caraga, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Agustin had a population of 1,269. This made it the 7th largest of 8 barangays in Carmen by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Agustin accounted for approximately 5.48% of the total population of Carmen, which stood at 23,172 in the same census year.

The barangay recorded 1,183 residents in the 2015 intercensal count and 1,269 residents in the 2020 Census — a net change of +7.3%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay San Agustin as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Carmen is a municipality comprising 8 barangays, and serves as the governing unit directly responsible for local services in Barangay San Agustin, including public health, sanitation, peace and order, and civil registration. Within the wider province of Agusan Del Norte, which contains 253 barangays across its component cities and municipalities, Barangay San Agustin ranks 128th by 2020 population. Agusan Del Norte is classified as a 3rd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay San Agustin 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.