Barangay Del Rosario (Pob.)

Barangay Del Rosario (Pob.) forms part of Milaor, a municipality in Camarines Sur, and is classified as a mid-sized barangay.

According to the 2020 Philippine census, Barangay Del Rosario (Pob.) had a population of 2,563. This made it the 3rd largest of 20 barangays in Milaor by population, placing it in the upper half of the municipality. Residents of Barangay Del Rosario (Pob.) accounted for approximately 7.55% of the total population of Milaor, which stood at 33,963 in the same census year.

The barangay recorded 2,556 residents in the 2015 intercensal count and 2,563 residents in the 2020 Census — a net change of +0.3%, consistent with a slowly expanding settlement. Barangay Del Rosario (Pob.) is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Milaor is a municipality comprising 20 barangays, and serves as the governing unit directly responsible for local services in Barangay Del Rosario (Pob.), 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 Del Rosario (Pob.) ranks 228th 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.

Like every Philippine barangay, Barangay Del Rosario (Pob.) 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.