Barangay Ogbac

Barangay Ogbac forms part of Boac, a municipality in Marinduque, and is classified as a very small barangay.

According to the 2020 Philippine census, Barangay Ogbac had a population of 460. This made it the 45th largest of 61 barangays in Boac by population, placing it among the smaller barangays of the municipality. Residents of Barangay Ogbac accounted for approximately 0.80% of the total population of Boac, which stood at 57,283 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Ogbac moving from 371 residents to 460 residents, an intercensal change of +24.0%. The trajectory indicates a growing community. Barangay Ogbac is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Boac is a municipality comprising 61 barangays, and serves as the governing unit directly responsible for local services in Barangay Ogbac, including public health, sanitation, peace and order, and civil registration. Within the wider province of Marinduque, which contains 218 barangays across its component cities and municipalities, Barangay Ogbac ranks 177th by 2020 population. Marinduque is classified as a 4th by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Like every Philippine barangay, Barangay Ogbac is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.