Barangay Ilisan

Situated in Alicia, Zamboanga Sibugay, Barangay Ilisan is one of 27 barangays that make up the municipality within Zamboanga Peninsula.

According to the 2020 Philippine census, Barangay Ilisan had a population of 812. This made it the 24th largest of 27 barangays in Alicia by population, placing it among the smaller barangays of the municipality. Residents of Barangay Ilisan accounted for approximately 2.06% of the total population of Alicia, which stood at 39,456 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Ilisan moving from 619 residents to 812 residents, an intercensal change of +31.2%. The trajectory indicates a growing community. Barangay Ilisan is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Alicia is a municipality comprising 27 barangays, and serves as the governing unit directly responsible for local services in Barangay Ilisan, 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 Ilisan ranks 309th 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.

The barangay's legislative and executive affairs are handled by a Punong Barangay and the Sangguniang Barangay, elected nationwide during the Barangay and SK Elections. The next BSKE is scheduled for Monday, November 2, 2026, following the synchronized election schedule set by COMELEC Resolution No. 11191.