Barangay San Leonardo

Barangay San Leonardo is a mid-sized barangay in the municipality of Bambang, located in the province of Nueva Vizcaya, in the Cagayan Valley region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Leonardo had a population of 2,101. This made it the 12th largest of 25 barangays in Bambang by population, placing it in the middle tier of the municipality. Residents of Barangay San Leonardo accounted for approximately 3.77% of the total population of Bambang, which stood at 55,789 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Leonardo moving from 1,907 residents to 2,101 residents, an intercensal change of +10.2%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay San Leonardo as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Bambang is a municipality comprising 25 barangays, and serves as the governing unit directly responsible for local services in Barangay San Leonardo, including public health, sanitation, peace and order, and civil registration. Within the wider province of Nueva Vizcaya, which contains 275 barangays across its component cities and municipalities, Barangay San Leonardo ranks 81st by 2020 population. Nueva Vizcaya is classified as a 2nd 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.