Barangay Olaga

Classified as a very small barangay, Barangay Olaga is one of the administrative divisions of Sibalom in Antique, Western Visayas, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Olaga had a population of 475. This made it the 54th largest of 76 barangays in Sibalom by population, placing it in the middle tier of the municipality. Residents of Barangay Olaga accounted for approximately 0.74% of the total population of Sibalom, which stood at 63,833 in the same census year.

The barangay recorded 472 residents in the 2015 intercensal count and 475 residents in the 2020 Census — a net change of +0.6%, consistent with a slowly expanding settlement. The Philippine Statistics Authority classifies Barangay Olaga 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 Olaga, 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 Olaga ranks 445th 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.