Barangay San Miguel

Classified as a small barangay, Barangay San Miguel is one of the administrative divisions of Agoo in La Union, Ilocos Region, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Miguel had a population of 1,446. This made it the 18th largest of 49 barangays in Agoo by population, placing it in the middle tier of the municipality. Residents of Barangay San Miguel accounted for approximately 2.19% of the total population of Agoo, which stood at 66,028 in the same census year.

The barangay recorded 1,577 residents in the 2015 intercensal count and 1,446 residents in the 2020 Census — a net change of -8.3%, consistent with a contracting settlement. The Philippine Statistics Authority classifies Barangay San Miguel as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Agoo is a municipality comprising 49 barangays, and serves as the governing unit directly responsible for local services in Barangay San Miguel, including public health, sanitation, peace and order, and civil registration. Within the wider province of La Union, which contains 576 barangays across its component cities and municipalities, Barangay San Miguel ranks 206th by 2020 population. La Union 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 San Miguel 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.