Barangay Dappig

Barangay Dappig is a small barangay in the municipality of San Agustin, located in the province of Isabela, in the Cagayan Valley region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Dappig had a population of 527. This made it the 18th largest of 23 barangays in San Agustin by population, placing it among the smaller barangays of the municipality. Residents of Barangay Dappig accounted for approximately 2.39% of the total population of San Agustin, which stood at 22,096 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Dappig changed from 555 to 527, a shift of -5.0% over the five-year period. This places the barangay among those with contracting populations in San Agustin. The Philippine Statistics Authority classifies Barangay Dappig as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

San Agustin is a municipality comprising 23 barangays, and serves as the governing unit directly responsible for local services in Barangay Dappig, 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 Dappig ranks 924th 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 Dappig 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.