Barangay Allinguigan 2nd

Barangay Allinguigan 2nd forms part of City of Ilagan, a city in Isabela, and is classified as a mid-sized barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Allinguigan 2nd had a population of 3,074. This made it the 12th largest of 91 barangays in City of Ilagan by population, placing it in the upper half of the city. Residents of Barangay Allinguigan 2nd accounted for approximately 1.94% of the total population of City of Ilagan, which stood at 158,218 in the same census year.

The barangay recorded 2,914 residents in the 2015 intercensal count and 3,074 residents in the 2020 Census — a net change of +5.5%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay Allinguigan 2nd as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

City of Ilagan is a city comprising 91 barangays, and serves as the governing unit directly responsible for local services in Barangay Allinguigan 2nd, including public health, sanitation, peace and order, and civil registration. Within the wider province of Isabela, which contains 1,055 barangays across its component cities and municipalities, Barangay Allinguigan 2nd ranks 100th by 2020 population. Isabela 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 Allinguigan 2nd 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.