Barangay Santa Rosa

Barangay Santa Rosa forms part of Aurora, a municipality in Isabela, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Santa Rosa had a population of 953. This made it the 18th largest of 33 barangays in Aurora by population, placing it in the middle tier of the municipality. Residents of Barangay Santa Rosa accounted for approximately 2.60% of the total population of Aurora, which stood at 36,621 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santa Rosa moving from 966 residents to 953 residents, an intercensal change of -1.3%. The trajectory indicates a broadly stable community. The Philippine Statistics Authority classifies Barangay Santa Rosa as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Aurora is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Santa Rosa, including public health, sanitation, peace and order, and civil registration. Within the wider province of Isabela, which contains 1,055 barangays across its component cities and municipalities, Barangay Santa Rosa ranks 676th by 2020 population. Isabela is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Santa Rosa 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.