Barangay Santa Rosa

Barangay Santa Rosa forms part of Magarao, a municipality in Camarines Sur, 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 908. This made it the 12th largest of 15 barangays in Magarao by population, placing it among the smaller barangays of the municipality. Residents of Barangay Santa Rosa accounted for approximately 3.40% of the total population of Magarao, which stood at 26,742 in the same census year.

The barangay recorded 913 residents in the 2015 intercensal count and 908 residents in the 2020 Census — a net change of -0.5%, consistent with a broadly stable settlement. 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.

Magarao is a municipality comprising 15 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 Camarines Sur, which contains 1,063 barangays across its component cities and municipalities, Barangay Santa Rosa ranks 763rd by 2020 population. Camarines Sur is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

The barangay's legislative and executive affairs are handled by a Punong Barangay and the Sangguniang Barangay, elected nationwide during the Barangay and SK Elections. The next BSKE is scheduled for Monday, November 2, 2026, following the synchronized election schedule set by COMELEC Resolution No. 11191.