Barangay Caganhao

Situated in Boac, Marinduque, Barangay Caganhao is one of 61 barangays that make up the municipality within MIMAROPA Region.

According to the 2020 Philippine census, Barangay Caganhao had a population of 1,117. This made it the 20th largest of 61 barangays in Boac by population, placing it in the middle tier of the municipality. Residents of Barangay Caganhao accounted for approximately 1.95% of the total population of Boac, which stood at 57,283 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Caganhao changed from 1,040 to 1,117, a shift of +7.4% over the five-year period. This places the barangay among those with growing populations in Boac. Barangay Caganhao 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 Caganhao, 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 Caganhao ranks 85th 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.

Barangay Caganhao 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.