Barangay I (Pob.)

Classified as a very small barangay, Barangay I (Pob.) is one of the administrative divisions of San Luis in Aurora, Central Luzon, Philippines.

According to the 2020 Philippine census, Barangay I (Pob.) had a population of 449. This made it the 17th largest of 18 barangays in San Luis by population, placing it among the smaller barangays of the municipality. Residents of Barangay I (Pob.) accounted for approximately 1.51% of the total population of San Luis, which stood at 29,824 in the same census year.

Census comparisons between 2015 and 2020 show Barangay I (Pob.) moving from 368 residents to 449 residents, an intercensal change of +22.0%. The trajectory indicates a growing community. Barangay I (Pob.) is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Luis is a municipality comprising 18 barangays, and serves as the governing unit directly responsible for local services in Barangay I (Pob.), including public health, sanitation, peace and order, and civil registration. Within the wider province of Aurora, which contains 151 barangays across its component cities and municipalities, Barangay I (Pob.) ranks 136th by 2020 population. Aurora is classified as a 3rd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay I (Pob.) 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.