Barangay Del Rosario

Situated in Tiaong, Quezon, Barangay Del Rosario is one of 31 barangays that make up the municipality within CALABARZON.

According to the 2020 Philippine census, Barangay Del Rosario had a population of 1,753. This made it the 24th largest of 31 barangays in Tiaong by population, placing it among the smaller barangays of the municipality. Residents of Barangay Del Rosario accounted for approximately 1.65% of the total population of Tiaong, which stood at 106,265 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Del Rosario changed from 1,942 to 1,753, a shift of -9.7% over the five-year period. This places the barangay among those with contracting populations in Tiaong. Barangay Del Rosario is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Tiaong is a municipality comprising 31 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 Quezon, which contains 1,242 barangays across its component cities and municipalities, Barangay Del Rosario ranks 367th by 2020 population. Quezon 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.