Barangay Alangan

Situated in Sibalom, Antique, Barangay Alangan is one of 76 barangays that make up the municipality within Western Visayas.

According to the 2020 Philippine census, Barangay Alangan had a population of 881. This made it the 22nd largest of 76 barangays in Sibalom by population, placing it in the upper half of the municipality. Residents of Barangay Alangan accounted for approximately 1.38% of the total population of Sibalom, which stood at 63,833 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Alangan moving from 834 residents to 881 residents, an intercensal change of +5.6%. The trajectory indicates a growing community. Barangay Alangan is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Sibalom is a municipality comprising 76 barangays, and serves as the governing unit directly responsible for local services in Barangay Alangan, 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 Alangan ranks 252nd 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.

Barangay Alangan 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.