Barangay Langnao

Barangay Langnao forms part of Calanasan, a municipality in Apayao, and is classified as a very small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Langnao had a population of 230. This made it the 16th largest of 18 barangays in Calanasan by population, placing it among the smaller barangays of the municipality. Residents of Barangay Langnao accounted for approximately 1.83% of the total population of Calanasan, which stood at 12,550 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Langnao moving from 229 residents to 230 residents, an intercensal change of +0.4%. The trajectory indicates a slowly expanding community. The Philippine Statistics Authority classifies Barangay Langnao as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Calanasan is a municipality comprising 18 barangays, and serves as the governing unit directly responsible for local services in Barangay Langnao, including public health, sanitation, peace and order, and civil registration. Within the wider province of Apayao, which contains 133 barangays across its component cities and municipalities, Barangay Langnao ranks 127th by 2020 population. Apayao is classified as a 3rd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Langnao 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.