Barangay Santo Tomas

Classified as a small barangay, Barangay Santo Tomas is one of the administrative divisions of San Nicolas in Pangasinan, Ilocos Region, Philippines.

According to the 2020 Philippine census, Barangay Santo Tomas had a population of 591. This made it the 28th largest of 33 barangays in San Nicolas by population, placing it among the smaller barangays of the municipality. Residents of Barangay Santo Tomas accounted for approximately 1.49% of the total population of San Nicolas, which stood at 39,778 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santo Tomas moving from 547 residents to 591 residents, an intercensal change of +8.0%. The trajectory indicates a growing community. Barangay Santo Tomas is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Nicolas is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Santo Tomas, including public health, sanitation, peace and order, and civil registration. Within the wider province of Pangasinan, which contains 1,364 barangays across its component cities and municipalities, Barangay Santo Tomas ranks 1310th by 2020 population. Pangasinan 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.