Barangay San Juan

Situated in Cainta, Rizal, Barangay San Juan is one of 7 barangays that make up the municipality within CALABARZON.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Juan had a population of 104,132. This made it the 2nd largest of 7 barangays in Cainta by population, placing it in the upper half of the municipality. Residents of Barangay San Juan accounted for approximately 27.63% of the total population of Cainta, which stood at 376,933 in the same census year.

The barangay recorded 98,849 residents in the 2015 intercensal count and 104,132 residents in the 2020 Census — a net change of +5.3%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay San Juan as urban, reflecting the density and built-up character of the area.

Cainta is a municipality comprising 7 barangays, and serves as the governing unit directly responsible for local services in Barangay San Juan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Rizal, which contains 189 barangays across its component cities and municipalities, Barangay San Juan ranks 8th by 2020 population. Rizal 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 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.