Barangay Malannao

Situated in Angadanan, Isabela, Barangay Malannao is one of 59 barangays that make up the municipality within Cagayan Valley.

According to the 2020 Philippine census, Barangay Malannao had a population of 258. This made it the 56th largest of 59 barangays in Angadanan by population, placing it among the smaller barangays of the municipality. Residents of Barangay Malannao accounted for approximately 0.57% of the total population of Angadanan, which stood at 44,977 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Malannao moving from 235 residents to 258 residents, an intercensal change of +9.8%. The trajectory indicates a growing community. Barangay Malannao is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Angadanan is a municipality comprising 59 barangays, and serves as the governing unit directly responsible for local services in Barangay Malannao, 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 Malannao ranks 1037th 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 Malannao 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.