Barangay Del Rosario

Barangay Del Rosario forms part of Bato, a municipality in Camarines Sur, and is classified as a very small barangay.

According to the 2020 Philippine census, Barangay Del Rosario had a population of 420. This made it the 27th largest of 33 barangays in Bato by population, placing it among the smaller barangays of the municipality. Residents of Barangay Del Rosario accounted for approximately 0.81% of the total population of Bato, which stood at 52,155 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Del Rosario changed from 420 to 420, a shift of 0.0% over the five-year period. This places the barangay among those with broadly stable populations in Bato. Barangay Del Rosario is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Bato is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Del Rosario, 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 ranks 1013th 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 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.