Barangay Alacaygan

Barangay Alacaygan forms part of Enrique B. Magalona, a municipality in Negros Occidental, and is classified as a mid-sized barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Alacaygan had a population of 2,410. This made it the 15th largest of 23 barangays in Enrique B. Magalona by population, placing it in the middle tier of the municipality. Residents of Barangay Alacaygan accounted for approximately 3.75% of the total population of Enrique B. Magalona, which stood at 64,290 in the same census year.

The barangay recorded 2,650 residents in the 2015 intercensal count and 2,410 residents in the 2020 Census — a net change of -9.1%, consistent with a contracting settlement. The Philippine Statistics Authority classifies Barangay Alacaygan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Enrique B. Magalona is a municipality comprising 23 barangays, and serves as the governing unit directly responsible for local services in Barangay Alacaygan, 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 Alacaygan ranks 400th 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.