Barangay Dulangan

Barangay Dulangan forms part of San Luis, a municipality in Batangas, and is classified as a mid-sized barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Dulangan had a population of 3,095. This made it the 1st largest of 26 barangays in San Luis by population, placing it among the most populous barangays of the municipality. Residents of Barangay Dulangan accounted for approximately 8.56% of the total population of San Luis, which stood at 36,172 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Dulangan moving from 2,868 residents to 3,095 residents, an intercensal change of +7.9%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Dulangan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Luis is a municipality comprising 26 barangays, and serves as the governing unit directly responsible for local services in Barangay Dulangan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Batangas, which contains 1,078 barangays across its component cities and municipalities, Barangay Dulangan ranks 287th by 2020 population. Batangas is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Like every Philippine barangay, Barangay Dulangan is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.