Barangay Santo Tomas

Situated in San Luis, Pampanga, Barangay Santo Tomas is one of 17 barangays that make up the municipality within Central Luzon.

According to the 2020 Philippine census, Barangay Santo Tomas had a population of 2,524. This made it the 11th largest of 17 barangays in San Luis by population, placing it in the middle tier of the municipality. Residents of Barangay Santo Tomas accounted for approximately 4.31% of the total population of San Luis, which stood at 58,551 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Santo Tomas changed from 2,212 to 2,524, a shift of +14.1% over the five-year period. This places the barangay among those with growing populations in San Luis. Barangay Santo Tomas is officially classified as urban, reflecting the density and built-up character of the area.

San Luis is a municipality comprising 17 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 Pampanga, which contains 538 barangays across its component cities and municipalities, Barangay Santo Tomas ranks 348th 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.

Like every Philippine barangay, Barangay Santo Tomas 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.