Barangay San Pascual

Barangay San Pascual is a small barangay in the municipality of Diffun, located in the province of Quirino, in the Cagayan Valley region of the Philippines.

According to the 2020 Philippine census, Barangay San Pascual had a population of 687. This made it the 31st largest of 33 barangays in Diffun by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Pascual accounted for approximately 1.22% of the total population of Diffun, which stood at 56,102 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Pascual moving from 698 residents to 687 residents, an intercensal change of -1.6%. The trajectory indicates a broadly stable community. Barangay San Pascual is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Diffun is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay San Pascual, including public health, sanitation, peace and order, and civil registration. Within the wider province of Quirino, which contains 132 barangays across its component cities and municipalities, Barangay San Pascual ranks 113th by 2020 population. Quirino is classified as a 3rd 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.