Barangay Olera

Barangay Olera forms part of City of Calbayog, a city in 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 Olera had a population of 147. This made it the 152nd largest of 157 barangays in City of Calbayog by population, placing it among the smaller barangays of the city. Residents of Barangay Olera accounted for approximately 0.08% of the total population of City of Calbayog, which stood at 186,960 in the same census year.

Census comparisons between 2015 and 2020 show Barangay Olera moving from 263 residents to 147 residents, an intercensal change of -44.1%. The trajectory indicates a contracting community. The Philippine Statistics Authority classifies Barangay Olera as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.

City of Calbayog is a city comprising 157 barangays, and serves as the governing unit directly responsible for local services in Barangay Olera, including public health, sanitation, peace and order, and civil registration. Within the wider province of Samar, which contains 951 barangays across its component cities and municipalities, Barangay Olera ranks 911th by 2020 population. Samar 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.