Barangay San Juan I

Barangay San Juan I is a large barangay in the City of General Trias, located in the province of Cavite, in the CALABARZON region of the Philippines.

According to the 2020 Philippine census, Barangay San Juan I had a population of 5,221. This made it the 19th largest of 33 barangays in City of General Trias by population, placing it in the middle tier of the city. Residents of Barangay San Juan I accounted for approximately 1.16% of the total population of City of General Trias, which stood at 450,583 in the same census year.

Census comparisons between 2015 and 2020 show Barangay San Juan I moving from 5,386 residents to 5,221 residents, an intercensal change of -3.1%. The trajectory indicates a contracting community. Barangay San Juan I is officially classified as urban, reflecting the density and built-up character of the area.

City of General Trias is a city comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay San Juan I, including public health, sanitation, peace and order, and civil registration. Within the wider province of Cavite, which contains 829 barangays across its component cities and municipalities, Barangay San Juan I ranks 209th by 2020 population. Cavite is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay San Juan I 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.