Barangay Tadlak

Classified as a mid-sized barangay, Barangay Tadlak is one of the administrative divisions of Los Baños in Laguna, CALABARZON, Philippines.

According to the 2020 Philippine census, Barangay Tadlak had a population of 4,043. This made it the 12th largest of 14 barangays in Los Baños by population, placing it among the smaller barangays of the municipality. Residents of Barangay Tadlak accounted for approximately 3.50% of the total population of Los Baños, which stood at 115,353 in the same census year.

The barangay recorded 3,319 residents in the 2015 intercensal count and 4,043 residents in the 2020 Census — a net change of +21.8%, consistent with a growing settlement. Barangay Tadlak is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Los Baños is a municipality comprising 14 barangays, and serves as the governing unit directly responsible for local services in Barangay Tadlak, including public health, sanitation, peace and order, and civil registration. Within the wider province of Laguna, which contains 681 barangays across its component cities and municipalities, Barangay Tadlak ranks 216th by 2020 population. Laguna 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 Tadlak 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.