Barangay San Nicolas

Classified as a small barangay, Barangay San Nicolas is one of the administrative divisions of Delfin Albano in Isabela, Cagayan Valley, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay San Nicolas had a population of 873. This made it the 13th largest of 29 barangays in Delfin Albano by population, placing it in the middle tier of the municipality. Residents of Barangay San Nicolas accounted for approximately 2.92% of the total population of Delfin Albano, which stood at 29,928 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay San Nicolas changed from 803 to 873, a shift of +8.7% over the five-year period. This places the barangay among those with growing populations in Delfin Albano. The Philippine Statistics Authority classifies Barangay San Nicolas as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Delfin Albano is a municipality comprising 29 barangays, and serves as the governing unit directly responsible for local services in Barangay San Nicolas, 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 San Nicolas ranks 724th 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 San Nicolas 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.