Barangay Cacatmonan

Classified as a very small barangay, Barangay Cacatmonan is one of the administrative divisions of Hernani in Eastern Samar, Eastern Visayas, Philippines.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Cacatmonan had a population of 103. This made it the 13th largest of 13 barangays in Hernani by population, placing it among the smaller barangays of the municipality. Residents of Barangay Cacatmonan accounted for approximately 1.21% of the total population of Hernani, which stood at 8,531 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Cacatmonan moving from 90 residents to 103 residents, an intercensal change of +14.4%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Cacatmonan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Hernani is a municipality comprising 13 barangays, and serves as the governing unit directly responsible for local services in Barangay Cacatmonan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Eastern Samar, which contains 597 barangays across its component cities and municipalities, Barangay Cacatmonan ranks 591st by 2020 population. Eastern Samar is classified as a 2nd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Cacatmonan is governed by an elected Sangguniang Barangay composed of a Punong Barangay and seven kagawads, with the Sangguniang Kabataan representing the youth. The next BSKE, set for Monday, November 2, 2026, will elect officials to four-year terms as provided under Republic Act No. 12232.