Barangay San Sebastian

Situated in Santa Barbara, Iloilo, Barangay San Sebastian is one of 60 barangays that make up the municipality within Western Visayas.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Sebastian had a population of 1,508. This made it the 14th largest of 60 barangays in Santa Barbara by population, placing it in the upper half of the municipality. Residents of Barangay San Sebastian accounted for approximately 2.23% of the total population of Santa Barbara, which stood at 67,630 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay San Sebastian changed from 1,306 to 1,508, a shift of +15.5% over the five-year period. This places the barangay among those with growing populations in Santa Barbara. The Philippine Statistics Authority classifies Barangay San Sebastian as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Santa Barbara is a municipality comprising 60 barangays, and serves as the governing unit directly responsible for local services in Barangay San Sebastian, 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 San Sebastian ranks 438th 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 San Sebastian 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.