Barangay District I (Pob.)

Situated in Gainza, Camarines Sur, Barangay District I (Pob.) is one of 8 barangays that make up the municipality within Bicol Region.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay District I (Pob.) had a population of 1,323. This made it the 4th largest of 8 barangays in Gainza by population, placing it in the middle tier of the municipality. Residents of Barangay District I (Pob.) accounted for approximately 11.42% 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 District I (Pob.) changed from 1,346 to 1,323, a shift of -1.7% over the five-year period. This places the barangay among those with broadly stable populations in Gainza. The Philippine Statistics Authority classifies Barangay District I (Pob.) 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 District I (Pob.), 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 District I (Pob.) ranks 584th 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 District I (Pob.) 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.