Barangay Langbaban

Barangay Langbaban is a very small barangay in the municipality of San Isidro, located in the province of Abra, in the CAR region of the Philippines.

According to the 2020 Philippine census, Barangay Langbaban had a population of 398. This made it the 7th largest of 9 barangays in San Isidro by population, placing it in the middle tier of the municipality. Residents of Barangay Langbaban accounted for approximately 8.39% of the total population of San Isidro, which stood at 4,745 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Langbaban changed from 347 to 398, a shift of +14.7% over the five-year period. This places the barangay among those with growing populations in San Isidro. Barangay Langbaban is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Isidro is a municipality comprising 9 barangays, and serves as the governing unit directly responsible for local services in Barangay Langbaban, including public health, sanitation, peace and order, and civil registration. Within the wider province of Abra, which contains 303 barangays across its component cities and municipalities, Barangay Langbaban ranks 243rd by 2020 population. Abra is classified as a 3rd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

The barangay's legislative and executive affairs are handled by a Punong Barangay and the Sangguniang Barangay, elected nationwide during the Barangay and SK Elections. The next BSKE is scheduled for Monday, November 2, 2026, following the synchronized election schedule set by COMELEC Resolution No. 11191.