Barangay Lambayong

Barangay Lambayong forms part of Tampakan, a municipality in South Cotabato, and is classified as a mid-sized barangay.

According to the 2020 Philippine census, Barangay Lambayong had a population of 2,806. This made it the 6th largest of 14 barangays in Tampakan by population, placing it in the middle tier of the municipality. Residents of Barangay Lambayong accounted for approximately 6.84% of the total population of Tampakan, which stood at 41,018 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Lambayong changed from 2,515 to 2,806, a shift of +11.6% over the five-year period. This places the barangay among those with growing populations in Tampakan. Barangay Lambayong is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Tampakan is a municipality comprising 14 barangays, and serves as the governing unit directly responsible for local services in Barangay Lambayong, 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 Lambayong ranks 131st 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.