Barangay Union

Barangay Union forms part of Lingig, a municipality in Surigao Del Sur, and is classified as a small barangay.

According to the 2020 Philippine census, Barangay Union had a population of 1,374. This made it the 11th largest of 18 barangays in Lingig by population, placing it in the middle tier of the municipality. Residents of Barangay Union accounted for approximately 3.91% of the total population of Lingig, which stood at 35,142 in the same census year.

The barangay recorded 1,381 residents in the 2015 intercensal count and 1,374 residents in the 2020 Census — a net change of -0.5%, consistent with a broadly stable settlement. Barangay Union is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Lingig is a municipality comprising 18 barangays, and serves as the governing unit directly responsible for local services in Barangay Union, including public health, sanitation, peace and order, and civil registration. Within the wider province of Surigao Del Sur, which contains 309 barangays across its component cities and municipalities, Barangay Union ranks 167th by 2020 population. Surigao Del Sur is classified as a 1st 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.