Barangay Binongan

Barangay Binongan is a small barangay in the municipality of Santo Domingo, located in the province of Ilocos Sur, in the Ilocos Region region of the Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Binongan had a population of 697. This made it the 21st largest of 36 barangays in Santo Domingo by population, placing it in the middle tier of the municipality. Residents of Barangay Binongan accounted for approximately 2.40% of the total population of Santo Domingo, which stood at 29,041 in the same census year.

The barangay recorded 658 residents in the 2015 intercensal count and 697 residents in the 2020 Census — a net change of +5.9%, consistent with a growing settlement. The Philippine Statistics Authority classifies Barangay Binongan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Santo Domingo is a municipality comprising 36 barangays, and serves as the governing unit directly responsible for local services in Barangay Binongan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Ilocos Sur, which contains 768 barangays across its component cities and municipalities, Barangay Binongan ranks 429th by 2020 population. Ilocos Sur is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Binongan 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.