Barangay Catandunganon

Barangay Catandunganon forms part of Mercedes, a municipality in Camarines Norte, and is classified as a very small barangay.

According to the 2020 Philippine census, Barangay Catandunganon had a population of 352. This made it the 26th largest of 26 barangays in Mercedes by population, placing it among the smaller barangays of the municipality. Residents of Barangay Catandunganon accounted for approximately 0.64% of the total population of Mercedes, which stood at 55,334 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Catandunganon moving from 348 residents to 352 residents, an intercensal change of +1.1%. The trajectory indicates a slowly expanding community. Barangay Catandunganon is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Mercedes is a municipality comprising 26 barangays, and serves as the governing unit directly responsible for local services in Barangay Catandunganon, including public health, sanitation, peace and order, and civil registration. Within the wider province of Camarines Norte, which contains 282 barangays across its component cities and municipalities, Barangay Catandunganon ranks 279th by 2020 population. Camarines Norte is classified as a 2nd 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.