Barangay Ilaya 1st

Classified as a small barangay, Barangay Ilaya 1st is one of the administrative divisions of Dumangas in Iloilo, Western Visayas, Philippines.

According to the 2020 Philippine census, Barangay Ilaya 1st had a population of 672. This made it the 38th largest of 45 barangays in Dumangas by population, placing it among the smaller barangays of the municipality. Residents of Barangay Ilaya 1st accounted for approximately 0.91% of the total population of Dumangas, which stood at 73,899 in the same census year.

The barangay recorded 707 residents in the 2015 intercensal count and 672 residents in the 2020 Census — a net change of -5.0%, consistent with a contracting settlement. Barangay Ilaya 1st is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Dumangas is a municipality comprising 45 barangays, and serves as the governing unit directly responsible for local services in Barangay Ilaya 1st, 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 Ilaya 1st ranks 1085th 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.