Barangay Santa Rosa

Situated in City of Santiago, Isabela, Barangay Santa Rosa is one of 37 barangays that make up the city within Cagayan Valley.

According to the 2020 Philippine census, Barangay Santa Rosa had a population of 772. This made it the 37th largest of 37 barangays in City of Santiago by population, placing it among the smaller barangays of the city. Residents of Barangay Santa Rosa accounted for approximately 0.52% of the total population of City of Santiago, which stood at 148,580 in the same census year.

The barangay recorded 703 residents in the 2015 intercensal count and 772 residents in the 2020 Census — a net change of +9.8%, consistent with a growing settlement. Barangay Santa Rosa is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

City of Santiago is a city comprising 37 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 786th 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.

Like every Philippine barangay, Barangay Santa Rosa 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.