Barangay Langgam

Barangay Langgam forms part of City of San Pedro, a city in Laguna, and is classified as a very large barangay.

According to the 2020 Philippine census, Barangay Langgam had a population of 30,946. This made it the 3rd largest of 27 barangays in City of San Pedro by population, placing it among the most populous barangays of the city. Residents of Barangay Langgam accounted for approximately 9.49% of the total population of City of San Pedro, which stood at 326,001 in the same census year.

The barangay recorded 29,625 residents in the 2015 intercensal count and 30,946 residents in the 2020 Census — a net change of +4.5%, consistent with a growing settlement. Barangay Langgam is officially classified as urban, reflecting the density and built-up character of the area.

City of San Pedro is a city comprising 27 barangays, and serves as the governing unit directly responsible for local services in Barangay Langgam, 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 Langgam ranks 19th 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.

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.