Barangay Lanjagan

Situated in Ajuy, Iloilo, Barangay Lanjagan is one of 34 barangays that make up the municipality within Western Visayas.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Lanjagan had a population of 1,032. This made it the 19th largest of 34 barangays in Ajuy by population, placing it in the middle tier of the municipality. Residents of Barangay Lanjagan accounted for approximately 1.93% of the total population of Ajuy, which stood at 53,462 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Lanjagan changed from 1,160 to 1,032, a shift of -11.0% over the five-year period. This places the barangay among those with contracting populations in Ajuy. The Philippine Statistics Authority classifies Barangay Lanjagan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Ajuy is a municipality comprising 34 barangays, and serves as the governing unit directly responsible for local services in Barangay Lanjagan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Iloilo, which contains 1,901 barangays across its component cities and municipalities, Barangay Lanjagan ranks 741st by 2020 population. Iloilo is classified as a 1st 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.