Barangay Uauang-Tuliao

Classified as a very small barangay, Barangay Uauang-Tuliao is one of the administrative divisions of Santo Tomas in Isabela, Cagayan Valley, Philippines.

According to the 2020 Philippine census, Barangay Uauang-Tuliao had a population of 113. This made it the 26th largest of 27 barangays in Santo Tomas by population, placing it among the smaller barangays of the municipality. Residents of Barangay Uauang-Tuliao accounted for approximately 0.46% of the total population of Santo Tomas, which stood at 24,528 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Uauang-Tuliao moving from 165 residents to 113 residents, an intercensal change of -31.5%. The trajectory indicates a contracting community. Barangay Uauang-Tuliao is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Santo Tomas is a municipality comprising 27 barangays, and serves as the governing unit directly responsible for local services in Barangay Uauang-Tuliao, 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 Uauang-Tuliao ranks 1051st 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.

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.