Barangay Reina Mercedes

Situated in Maconacon, Isabela, Barangay Reina Mercedes is one of 10 barangays that make up the municipality within Cagayan Valley.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Reina Mercedes had a population of 483. This made it the 3rd largest of 10 barangays in Maconacon by population, placing it in the upper half of the municipality. Residents of Barangay Reina Mercedes accounted for approximately 12.14% of the total population of Maconacon, which stood at 3,977 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Reina Mercedes changed from 646 to 483, a shift of -25.2% over the five-year period. This places the barangay among those with contracting populations in Maconacon. The Philippine Statistics Authority classifies Barangay Reina Mercedes as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Maconacon is a municipality comprising 10 barangays, and serves as the governing unit directly responsible for local services in Barangay Reina Mercedes, 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 Reina Mercedes ranks 951st 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 Reina Mercedes 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.