Barangay Nasi

Barangay Nasi is a mid-sized barangay in the municipality of Rosario, located in the province of Batangas, in the CALABARZON region of the Philippines.

According to the 2020 Philippine census, Barangay Nasi had a population of 2,208. This made it the 25th largest of 48 barangays in Rosario by population, placing it in the middle tier of the municipality. Residents of Barangay Nasi accounted for approximately 1.72% of the total population of Rosario, which stood at 128,352 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Nasi changed from 2,048 to 2,208, a shift of +7.8% over the five-year period. This places the barangay among those with growing populations in Rosario. Barangay Nasi is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Rosario is a municipality comprising 48 barangays, and serves as the governing unit directly responsible for local services in Barangay Nasi, including public health, sanitation, peace and order, and civil registration. Within the wider province of Batangas, which contains 1,078 barangays across its component cities and municipalities, Barangay Nasi ranks 479th by 2020 population. Batangas is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Nasi is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.