Barangay Silagan

Classified as a small barangay, Barangay Silagan is one of the administrative divisions of Allacapan in Cagayan, Cagayan Valley, Philippines.

According to the 2020 Philippine census, Barangay Silagan had a population of 778. This made it the 22nd largest of 27 barangays in Allacapan by population, placing it among the smaller barangays of the municipality. Residents of Barangay Silagan accounted for approximately 2.21% of the total population of Allacapan, which stood at 35,234 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Silagan moving from 584 residents to 778 residents, an intercensal change of +33.2%. The trajectory indicates a growing community. Barangay Silagan is officially classified 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 Silagan, 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 Silagan ranks 627th 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 Silagan 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.