Barangay Mansagomayon

Barangay Mansagomayon forms part of Santa Catalina, a municipality in Negros Oriental, and is classified as a small barangay.

According to the 2020 Philippine census, Barangay Mansagomayon had a population of 1,123. This made it the 21st largest of 22 barangays in Santa Catalina by population, placing it among the smaller barangays of the municipality. Residents of Barangay Mansagomayon accounted for approximately 1.45% of the total population of Santa Catalina, which stood at 77,501 in the same census year.

Between the 2015 and 2020 censuses, the population of Barangay Mansagomayon changed from 1,172 to 1,123, a shift of -4.2% over the five-year period. This places the barangay among those with contracting populations in Santa Catalina. Barangay Mansagomayon is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Santa Catalina is a municipality comprising 22 barangays, and serves as the governing unit directly responsible for local services in Barangay Mansagomayon, including public health, sanitation, peace and order, and civil registration. Within the wider province of Negros Oriental, which contains 557 barangays across its component cities and municipalities, Barangay Mansagomayon ranks 430th by 2020 population. Negros Oriental 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.