Barangay Malongcay Dacu

Barangay Malongcay Dacu forms part of Dauin, a municipality in Negros Oriental, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Malongcay Dacu had a population of 1,283. This made it the 9th largest of 23 barangays in Dauin by population, placing it in the middle tier of the municipality. Residents of Barangay Malongcay Dacu accounted for approximately 4.27% of the total population of Dauin, which stood at 30,018 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Malongcay Dacu moving from 1,234 residents to 1,283 residents, an intercensal change of +4.0%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Malongcay Dacu as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Dauin is a municipality comprising 23 barangays, and serves as the governing unit directly responsible for local services in Barangay Malongcay Dacu, including public health, sanitation, peace and order, and civil registration. Within the wider province of Negros Oriental, which contains 557 barangays across its component cities and municipalities, Barangay Malongcay Dacu ranks 400th by 2020 population. Negros Oriental is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Malongcay Dacu 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.