Barangay San Marcos

Barangay San Marcos forms part of Dingras, a municipality in Ilocos Norte, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Marcos had a population of 741. This made it the 27th largest of 31 barangays in Dingras by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Marcos accounted for approximately 1.85% of the total population of Dingras, which stood at 40,127 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Marcos moving from 649 residents to 741 residents, an intercensal change of +14.2%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay San Marcos as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Dingras is a municipality comprising 31 barangays, and serves as the governing unit directly responsible for local services in Barangay San Marcos, including public health, sanitation, peace and order, and civil registration. Within the wider province of Ilocos Norte, which contains 559 barangays across its component cities and municipalities, Barangay San Marcos ranks 392nd by 2020 population. Ilocos Norte 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 Marcos 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.