Barangay San Juan

Barangay San Juan is a mid-sized barangay in the municipality of San Ildefonso, located in the province of Bulacan, in the Central Luzon region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Juan had a population of 4,986. This made it the 5th largest of 36 barangays in San Ildefonso by population, placing it in the upper half of the municipality. Residents of Barangay San Juan accounted for approximately 4.31% of the total population of San Ildefonso, which stood at 115,713 in the same census year.

The barangay recorded 5,149 residents in the 2015 intercensal count and 4,986 residents in the 2020 Census — a net change of -3.2%, consistent with a contracting settlement. The Philippine Statistics Authority classifies Barangay San Juan as urban, reflecting the density and built-up character of the area.

San Ildefonso is a municipality comprising 36 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 Bulacan, which contains 569 barangays across its component cities and municipalities, Barangay San Juan ranks 243rd by 2020 population. Bulacan is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Like every Philippine barangay, Barangay San Juan is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.