Barangay Tandoc

Classified as a mid-sized barangay, Barangay Tandoc is one of the administrative divisions of City of San Carlos in Pangasinan, Ilocos Region, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Tandoc had a population of 3,801. This made it the 16th largest of 86 barangays in City of San Carlos by population, placing it in the upper half of the city. Residents of Barangay Tandoc accounted for approximately 1.85% of the total population of City of San Carlos, which stood at 205,424 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Tandoc changed from 3,758 to 3,801, a shift of +1.1% over the five-year period. This places the barangay among those with slowly expanding populations in City of San Carlos. The Philippine Statistics Authority classifies Barangay Tandoc as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

City of San Carlos is a city comprising 86 barangays, and serves as the governing unit directly responsible for local services in Barangay Tandoc, including public health, sanitation, peace and order, and civil registration. Within the wider province of Pangasinan, which contains 1,364 barangays across its component cities and municipalities, Barangay Tandoc ranks 178th by 2020 population. Pangasinan 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.