Barangay I (Pob.)

Barangay I (Pob.) forms part of Ilog, a municipality in Negros Occidental, and is classified as a large barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay I (Pob.) had a population of 5,345. This made it the 3rd largest of 15 barangays in Ilog by population, placing it in the upper half of the municipality. Residents of Barangay I (Pob.) accounted for approximately 8.93% of the total population of Ilog, which stood at 59,855 in the same census year.

The barangay recorded 5,311 residents in the 2015 intercensal count and 5,345 residents in the 2020 Census — a net change of +0.6%, consistent with a slowly expanding settlement. The Philippine Statistics Authority classifies Barangay I (Pob.) as urban, reflecting the density and built-up character of the area.

Ilog is a municipality comprising 15 barangays, and serves as the governing unit directly responsible for local services in Barangay I (Pob.), including public health, sanitation, peace and order, and civil registration. Within the wider province of Negros Occidental, which contains 662 barangays across its component cities and municipalities, Barangay I (Pob.) ranks 172nd by 2020 population. Negros Occidental 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.