Barangay Nagsaulay

Barangay Nagsaulay is a mid-sized barangay in the municipality of San Juan, located in the province of Batangas, in the CALABARZON region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Nagsaulay had a population of 2,799. This made it the 19th largest of 42 barangays in San Juan by population, placing it in the middle tier of the municipality. Residents of Barangay Nagsaulay accounted for approximately 2.45% of the total population of San Juan, which stood at 114,068 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Nagsaulay moving from 2,604 residents to 2,799 residents, an intercensal change of +7.5%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Nagsaulay as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Juan is a municipality comprising 42 barangays, and serves as the governing unit directly responsible for local services in Barangay Nagsaulay, 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 Nagsaulay ranks 328th 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 Nagsaulay 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.