Barangay Castellano

Classified as a small barangay, Barangay Castellano is one of the administrative divisions of Calatrava in Negros Occidental, Western Visayas, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Castellano had a population of 1,527. This made it the 22nd largest of 40 barangays in Calatrava by population, placing it in the middle tier of the municipality. Residents of Barangay Castellano accounted for approximately 1.85% of the total population of Calatrava, which stood at 82,540 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Castellano moving from 1,782 residents to 1,527 residents, an intercensal change of -14.3%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay Castellano as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Calatrava is a municipality comprising 40 barangays, and serves as the governing unit directly responsible for local services in Barangay Castellano, 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 Castellano ranks 488th 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.