Barangay District I (Pob.)

Barangay District I (Pob.) forms part of City of Cauayan, a city in Isabela, and is classified as a large barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay District I (Pob.) had a population of 11,355. This made it the 2nd largest of 65 barangays in City of Cauayan by population, placing it among the most populous barangays of the city. Residents of Barangay District I (Pob.) accounted for approximately 7.92% of the total population of City of Cauayan, which stood at 143,403 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay District I (Pob.) changed from 10,662 to 11,355, a shift of +6.5% over the five-year period. This places the barangay among those with growing populations in City of Cauayan. The Philippine Statistics Authority classifies Barangay District I (Pob.) as urban, reflecting the density and built-up character of the area.

City of Cauayan is a city comprising 65 barangays, and serves as the governing unit directly responsible for local services in Barangay District I (Pob.), 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 District I (Pob.) ranks 4th 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.

Barangay District I (Pob.) is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.