Barangay Malalison Island

Barangay Malalison Island forms part of Culasi, a municipality in Antique, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Malalison Island had a population of 789. This made it the 20th largest of 44 barangays in Culasi by population, placing it in the middle tier of the municipality. Residents of Barangay Malalison Island accounted for approximately 1.77% of the total population of Culasi, which stood at 44,494 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Malalison Island changed from 649 to 789, a shift of +21.6% over the five-year period. This places the barangay among those with growing populations in Culasi. The Philippine Statistics Authority classifies Barangay Malalison Island as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Culasi is a municipality comprising 44 barangays, and serves as the governing unit directly responsible for local services in Barangay Malalison Island, including public health, sanitation, peace and order, and civil registration. Within the wider province of Antique, which contains 590 barangays across its component cities and municipalities, Barangay Malalison Island ranks 285th by 2020 population. Antique is classified as a 2nd 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.