Barangay Guibwangan

Barangay Guibwangan forms part of Catubig, a municipality in Northern Samar, and is classified as a very small barangay.

According to the 2020 Census of Population and Housing conducted by the Philippine Statistics Authority, Barangay Guibwangan had a population of 451. This made it the 29th largest of 47 barangays in Catubig by population, placing it in the middle tier of the municipality. Residents of Barangay Guibwangan accounted for approximately 1.40% of the total population of Catubig, which stood at 32,174 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Guibwangan moving from 422 residents to 451 residents, an intercensal change of +6.9%. The trajectory indicates a growing community. The Philippine Statistics Authority classifies Barangay Guibwangan as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

Catubig is a municipality comprising 47 barangays, and serves as the governing unit directly responsible for local services in Barangay Guibwangan, including public health, sanitation, peace and order, and civil registration. Within the wider province of Northern Samar, which contains 569 barangays across its component cities and municipalities, Barangay Guibwangan ranks 453rd by 2020 population. Northern Samar is classified as a 2nd by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.

Barangay Guibwangan 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.