Barangay Sampaloc

Barangay Sampaloc forms part of Gainza, a municipality in Camarines Sur, and is classified as a mid-sized barangay.

According to the 2020 Philippine census, Barangay Sampaloc had a population of 2,252. This made it the 1st largest of 8 barangays in Gainza by population, placing it among the most populous barangays of the municipality. Residents of Barangay Sampaloc accounted for approximately 19.44% of the total population of Gainza, which stood at 11,584 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Sampaloc changed from 2,098 to 2,252, a shift of +7.3% over the five-year period. This places the barangay among those with growing populations in Gainza. Barangay Sampaloc is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Gainza is a municipality comprising 8 barangays, and serves as the governing unit directly responsible for local services in Barangay Sampaloc, 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 Sampaloc ranks 289th 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.

Like every Philippine barangay, Barangay Sampaloc is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.