Barangay Sampoli A

Barangay Sampoli A forms part of Diplahan, a municipality in Zamboanga Sibugay, and is classified as a very small barangay.

According to the 2020 Philippine census, Barangay Sampoli A had a population of 478. This made it the 21st largest of 22 barangays in Diplahan by population, placing it among the smaller barangays of the municipality. Residents of Barangay Sampoli A accounted for approximately 1.47% of the total population of Diplahan, which stood at 32,585 in the same census year.

The barangay recorded 554 residents in the 2015 intercensal count and 478 residents in the 2020 Census — a net change of -13.7%, consistent with a contracting settlement. Barangay Sampoli A is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Diplahan is a municipality comprising 22 barangays, and serves as the governing unit directly responsible for local services in Barangay Sampoli A, including public health, sanitation, peace and order, and civil registration. Within the wider province of Zamboanga Sibugay, which contains 389 barangays across its component cities and municipalities, Barangay Sampoli A ranks 367th by 2020 population. Zamboanga Sibugay is classified as a 2nd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Sampoli A 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.