Barangay Calaylayan (Pob.)

Barangay Calaylayan (Pob.) forms part of Abucay, a municipality in Bataan, and is classified as a large barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Calaylayan (Pob.) had a population of 5,627. This made it the 4th largest of 9 barangays in Abucay by population, placing it in the middle tier of the municipality. Residents of Barangay Calaylayan (Pob.) accounted for approximately 13.09% of the total population of Abucay, which stood at 42,984 in the same census year.

The barangay recorded 4,833 residents in the 2015 intercensal count and 5,627 residents in the 2020 Census — a net change of +16.4%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay Calaylayan (Pob.) as urban, reflecting the density and built-up character of the area.

Abucay is a municipality comprising 9 barangays, and serves as the governing unit directly responsible for local services in Barangay Calaylayan (Pob.), including public health, sanitation, peace and order, and civil registration. Within the wider province of Bataan, which contains 237 barangays across its component cities and municipalities, Barangay Calaylayan (Pob.) ranks 48th by 2020 population. Bataan 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 Calaylayan (Pob.) 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.