Barangay San Juan

Barangay San Juan is a very small barangay in the municipality of Allacapan, located in the province of Cagayan, in the Cagayan Valley 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 493. This made it the 26th largest of 27 barangays in Allacapan by population, placing it among the smaller barangays of the municipality. Residents of Barangay San Juan accounted for approximately 1.40% of the total population of Allacapan, which stood at 35,234 in the same census year.

The barangay recorded 454 residents in the 2015 intercensal count and 493 residents in the 2020 Census — a net change of +8.6%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay San Juan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Allacapan is a municipality comprising 27 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 Cagayan, which contains 820 barangays across its component cities and municipalities, Barangay San Juan ranks 728th by 2020 population. Cagayan 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.