Barangay San Matias

Classified as a large barangay, Barangay San Matias is one of the administrative divisions of Sto. Tomas in Pampanga, Central Luzon, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Matias had a population of 13,769. This made it the 1st largest of 7 barangays in Sto. Tomas by population, placing it among the most populous barangays of the municipality. Residents of Barangay San Matias accounted for approximately 32.14% 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 San Matias changed from 12,399 to 13,769, a shift of +11.0% over the five-year period. This places the barangay among those with growing populations in Sto. Tomas. The Philippine Statistics Authority classifies Barangay San Matias 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 San Matias, 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 San Matias ranks 21st 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.