Barangay Denlag

Barangay Denlag is a mid-sized barangay in the municipality of Lake Sebu, located in the province of South Cotabato, in the SOCCSKSARGEN region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Denlag had a population of 2,693. This made it the 14th largest of 19 barangays in Lake Sebu by population, placing it in the middle tier of the municipality. Residents of Barangay Denlag accounted for approximately 3.32% of the total population of Lake Sebu, which stood at 81,221 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Denlag moving from 2,861 residents to 2,693 residents, an intercensal change of -5.9%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay Denlag as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Lake Sebu is a municipality comprising 19 barangays, and serves as the governing unit directly responsible for local services in Barangay Denlag, including public health, sanitation, peace and order, and civil registration. Within the wider province of South Cotabato, which contains 225 barangays across its component cities and municipalities, Barangay Denlag ranks 136th by 2020 population. South Cotabato is classified as a 1st 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.