Barangay Lamdalag

Barangay Lamdalag forms part of Lake Sebu, a municipality in South Cotabato, and is classified as a large barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Lamdalag had a population of 5,120. This made it the 4th largest of 19 barangays in Lake Sebu by population, placing it in the upper half of the municipality. Residents of Barangay Lamdalag accounted for approximately 6.30% of the total population of Lake Sebu, which stood at 81,221 in the same census year.

The barangay recorded 4,849 residents in the 2015 intercensal count and 5,120 residents in the 2020 Census — a net change of +5.6%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay Lamdalag as urban, reflecting the density and built-up character of the area.

Lake Sebu is a municipality comprising 19 barangays, and serves as the governing unit directly responsible for local services in Barangay Lamdalag, 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 Lamdalag ranks 52nd 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.