Barangay San Mateo

Classified as a mid-sized barangay, Barangay San Mateo is one of the administrative divisions of City of San Pablo in Laguna, CALABARZON, Philippines.

According to the 2020 Philippine census, Barangay San Mateo had a population of 3,141. This made it the 38th largest of 80 barangays in City of San Pablo by population, placing it in the middle tier of the city. Residents of Barangay San Mateo accounted for approximately 1.10% of the total population of City of San Pablo, which stood at 285,348 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Mateo moving from 2,458 residents to 3,141 residents, an intercensal change of +27.8%. The trajectory indicates a growing community. Barangay San Mateo is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

City of San Pablo is a city comprising 80 barangays, and serves as the governing unit directly responsible for local services in Barangay San Mateo, including public health, sanitation, peace and order, and civil registration. Within the wider province of Laguna, which contains 681 barangays across its component cities and municipalities, Barangay San Mateo ranks 268th by 2020 population. Laguna 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.