Barangay Santo Rosario

Situated in Sto. Tomas, Pampanga, Barangay Santo Rosario is one of 7 barangays that make up the municipality within Central Luzon.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Santo Rosario had a population of 2,642. This made it the 7th largest of 7 barangays in Sto. Tomas by population, placing it among the smaller barangays of the municipality. Residents of Barangay Santo Rosario accounted for approximately 6.17% of the total population of Sto. Tomas, which stood at 42,846 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Santo Rosario changed from 2,170 to 2,642, a shift of +21.8% over the five-year period. This places the barangay among those with growing populations in Sto. Tomas. The Philippine Statistics Authority classifies Barangay Santo Rosario as urban, reflecting the density and built-up character of the area.

Sto. Tomas is a municipality comprising 7 barangays, and serves as the governing unit directly responsible for local services in Barangay Santo Rosario, including public health, sanitation, peace and order, and civil registration. Within the wider province of Pampanga, which contains 538 barangays across its component cities and municipalities, Barangay Santo Rosario ranks 335th by 2020 population. Pampanga 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.