Barangay Fermeldy

Situated in Tumauini, Isabela, Barangay Fermeldy is one of 46 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 Fermeldy had a population of 2,410. This made it the 9th largest of 46 barangays in Tumauini by population, placing it in the upper half of the municipality. Residents of Barangay Fermeldy accounted for approximately 3.41% of the total population of Tumauini, which stood at 70,743 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Fermeldy moving from 2,244 residents to 2,410 residents, an intercensal change of +7.4%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Fermeldy as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Tumauini is a municipality comprising 46 barangays, and serves as the governing unit directly responsible for local services in Barangay Fermeldy, 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 Fermeldy ranks 180th 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 Fermeldy 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.