Barangay Santiago

Barangay Santiago forms part of Barotac Viejo, a municipality in Iloilo, and is classified as a mid-sized barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Santiago had a population of 2,419. This made it the 4th largest of 26 barangays in Barotac Viejo by population, placing it in the upper half of the municipality. Residents of Barangay Santiago accounted for approximately 4.98% of the total population of Barotac Viejo, which stood at 48,614 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Santiago moving from 2,366 residents to 2,419 residents, an intercensal change of +2.2%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Santiago as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Barotac Viejo is a municipality comprising 26 barangays, and serves as the governing unit directly responsible for local services in Barangay Santiago, including public health, sanitation, peace and order, and civil registration. Within the wider province of Iloilo, which contains 1,901 barangays across its component cities and municipalities, Barangay Santiago ranks 174th by 2020 population. Iloilo is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Santiago 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.