Barangay Calpi

Barangay Calpi forms part of Bulan, a municipality in Sorsogon, and is classified as a small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Calpi had a population of 856. This made it the 44th largest of 63 barangays in Bulan by population, placing it in the middle tier of the municipality. Residents of Barangay Calpi accounted for approximately 0.81% of the total population of Bulan, which stood at 105,190 in the same census year.

The barangay recorded 918 residents in the 2015 intercensal count and 856 residents in the 2020 Census — a net change of -6.8%, consistent with a contracting settlement. The Philippine Statistics Authority classifies Barangay Calpi as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Bulan is a municipality comprising 63 barangays, and serves as the governing unit directly responsible for local services in Barangay Calpi, including public health, sanitation, peace and order, and civil registration. Within the wider province of Sorsogon, which contains 541 barangays across its component cities and municipalities, Barangay Calpi ranks 372nd by 2020 population. Sorsogon is classified as a 2nd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Calpi 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.