Barangay Santo Domingo

Barangay Santo Domingo forms part of Luisiana, a municipality in Laguna, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Santo Domingo had a population of 552. This made it the 11th largest of 23 barangays in Luisiana by population, placing it in the middle tier of the municipality. Residents of Barangay Santo Domingo accounted for approximately 2.65% of the total population of Luisiana, which stood at 20,859 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Santo Domingo changed from 503 to 552, a shift of +9.7% over the five-year period. This places the barangay among those with growing populations in Luisiana. The Philippine Statistics Authority classifies Barangay Santo Domingo as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Luisiana is a municipality comprising 23 barangays, and serves as the governing unit directly responsible for local services in Barangay Santo Domingo, 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 Santo Domingo ranks 561st 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.

Barangay Santo Domingo is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.