Barangay Masalongsalong

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

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Masalongsalong had a population of 1,244. This made it the 22nd largest of 26 barangays in Mercedes by population, placing it among the smaller barangays of the municipality. Residents of Barangay Masalongsalong accounted for approximately 2.25% of the total population of Mercedes, which stood at 55,334 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Masalongsalong changed from 1,291 to 1,244, a shift of -3.6% over the five-year period. This places the barangay among those with contracting populations in Mercedes. The Philippine Statistics Authority classifies Barangay Masalongsalong 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 Masalongsalong, 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 Masalongsalong ranks 202nd 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.