Barangay Dumadalig

Situated in Tantangan, South Cotabato, Barangay Dumadalig is one of 13 barangays that make up the municipality within SOCCSKSARGEN.

According to the 2020 Philippine census, Barangay Dumadalig had a population of 4,638. This made it the 4th largest of 13 barangays in Tantangan by population, placing it in the upper half of the municipality. Residents of Barangay Dumadalig accounted for approximately 10.14% of the total population of Tantangan, which stood at 45,744 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Dumadalig moving from 4,743 residents to 4,638 residents, an intercensal change of -2.2%. The trajectory indicates a contracting community. Barangay Dumadalig is officially classified as urban, reflecting the density and built-up character of the area.

Tantangan is a municipality comprising 13 barangays, and serves as the governing unit directly responsible for local services in Barangay Dumadalig, 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 Dumadalig ranks 63rd 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.

Barangay Dumadalig 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.