Barangay Ag-aguman

Situated in Tagudin, Ilocos Sur, Barangay Ag-aguman is one of 43 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 Ag-aguman had a population of 728. This made it the 28th largest of 43 barangays in Tagudin by population, placing it in the middle tier of the municipality. Residents of Barangay Ag-aguman accounted for approximately 1.75% of the total population of Tagudin, which stood at 41,538 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Ag-aguman moving from 694 residents to 728 residents, an intercensal change of +4.9%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Ag-aguman as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Tagudin is a municipality comprising 43 barangays, and serves as the governing unit directly responsible for local services in Barangay Ag-aguman, 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 Ag-aguman ranks 413th 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.

Barangay Ag-aguman 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.