Barangay Old Caaluan

Barangay Old Caaluan forms part of Tinambac, a municipality in Camarines Sur, and is classified as a very small barangay.

According to the 2020 Philippine census, Barangay Old Caaluan had a population of 284. This made it the 44th largest of 44 barangays in Tinambac by population, placing it among the smaller barangays of the municipality. Residents of Barangay Old Caaluan accounted for approximately 0.40% of the total population of Tinambac, which stood at 70,176 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Old Caaluan moving from 188 residents to 284 residents, an intercensal change of +51.1%. The trajectory indicates a growing community. Barangay Old Caaluan is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Tinambac is a municipality comprising 44 barangays, and serves as the governing unit directly responsible for local services in Barangay Old Caaluan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Camarines Sur, which contains 1,063 barangays across its component cities and municipalities, Barangay Old Caaluan ranks 1047th by 2020 population. Camarines Sur is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Old Caaluan 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.