Barangay Piwan

Situated in Midsalip, Zamboanga Del Sur, Barangay Piwan is one of 33 barangays that make up the municipality within Zamboanga Peninsula.

According to the 2020 Philippine census, Barangay Piwan had a population of 502. This made it the 29th largest of 33 barangays in Midsalip by population, placing it among the smaller barangays of the municipality. Residents of Barangay Piwan accounted for approximately 1.49% of the total population of Midsalip, which stood at 33,711 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Piwan changed from 531 to 502, a shift of -5.5% over the five-year period. This places the barangay among those with contracting populations in Midsalip. Barangay Piwan is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Midsalip is a municipality comprising 33 barangays, and serves as the governing unit directly responsible for local services in Barangay Piwan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Zamboanga Del Sur, which contains 779 barangays across its component cities and municipalities, Barangay Piwan ranks 602nd by 2020 population. Zamboanga Del 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 Piwan 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.