Barangay Casinsin

Barangay Casinsin forms part of Pakil, a municipality in Laguna, and is classified as a mid-sized barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Casinsin had a population of 2,192. This made it the 5th largest of 13 barangays in Pakil by population, placing it in the middle tier of the municipality. Residents of Barangay Casinsin accounted for approximately 9.33% of the total population of Pakil, which stood at 23,495 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Casinsin changed from 1,662 to 2,192, a shift of +31.9% over the five-year period. This places the barangay among those with growing populations in Pakil. The Philippine Statistics Authority classifies Barangay Casinsin as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Pakil is a municipality comprising 13 barangays, and serves as the governing unit directly responsible for local services in Barangay Casinsin, 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 Casinsin ranks 347th 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.