Barangay Olandao is a barangay in Basay, Negros Oriental, under the jurisdiction of the municipality of Basay. It had a population of 1,040 as of the 2024 POPCEN.
Under Republic Act 12232, elected barangay officials serve a four-year term. Make sure you are registered and know your polling place before election day.
Primary PHLPost ZIP for Basay. In NCR and some large cities, barangays can have different ZIPs. Confirm with PHLPost.
Next BSKE
November 2, 2026
Barangay Olandao · Data updated 2026-05-25
About Barangay Olandao
Classified as a small barangay, Barangay Olandao is one of the administrative divisions of Basay in Negros Oriental, Negros Island Region, Philippines.
According to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority, Barangay Olandao had a population of 1,040. This made it the 10th largest of 10 barangays in Basay by population, placing it among the smaller barangays of the municipality. Residents of Barangay Olandao accounted for approximately 3.46% of the total population of Basay, which stood at 30,018 in the same 2024 POPCEN reference period.
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Between the 2020 Census of Population and Housing and the 2024 POPCEN, the population of Barangay Olandao changed from 1,119 to 1,040, a shift of -7.1% over the four-year period. This places the barangay among those with contracting populations in Basay. Barangay Olandao is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.
Basay is a municipality comprising 10 barangays, and serves as the governing unit directly responsible for local services in Barangay Olandao, 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 Olandao ranks 454th by 2024 POPCEN 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.
Compiled from official Philippine Statistics Authority census data and Philippine Standard Geographic Code records. Reviewed and published by the Barangay Directory editorial team. See our methodology for sources, verification process, and update cadence.
The current Sangguniang Barangay leadership for Barangay Olandao is being verified against the DILG Barangay Officials Masterlist. Other details about this barangay — including census population, urban/rural classification, income class, and administrative hierarchy — are documented in the sections below.
The next Barangay and Sangguniang Kabataan Elections are scheduled for Monday, November 2, 2026 under Republic Act No. 12232. Each Punong Barangay, Kagawad, and SK Chairperson serves a four-year term.
Are you a resident or official of Barangay Olandao? Use the form below to share verified officials, the hall address, or a contact number. All submissions are reviewed by our editorial team before publication.
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Population history of Barangay Olandao from official Philippine Statistics Authority census releases.
Census
Population
Change
% change
2015 Census
1,085
—
—
2020 CPH
1,119
+34
+3.1%
2024 POPCEN
1,040
-79
-7.1%
2015–2020: +3.1% total (+0.62%/yr).2020–2024: -7.1% total (-1.81%/yr).
Source: PSA Census of Population (2015), Census of Population and Housing (2020), and POPCEN (2024) as published by the Philippine Statistics Authority. Figures are official as declared by Proclamation.
Comparative Context
2024 POPCEN
Rank in Basay
10thof 10
Among the smaller barangays of Basay by population.
Share of Basay
3.5%
of the municipality's total 30,018 residents.
Rank in Negros Oriental
454thof 557
Province-wide percentile: 19.
PSA Classification
Rural
Lower density, predominantly non-built-up land use.
Income Classification
3rd
BLGF upper-middle fiscal capacity tier.
Basay (municipality) class
4th
Parent municipality income class — influences LGU services and budget that reach this barangay.
Rankings derived from the most recent PSA population data for each barangay. Classifications sourced from the Philippine Statistics Authority and Bureau of Local Government Finance.
These services are available at every barangay hall in the Philippines under Republic Act 7160 (Local Government Code). Visit Barangay Olandao in Basay during office hours to request any of the following.
Services listed are based on Republic Act 7160 (Local Government Code of 1991). Specific requirements and fees vary by barangay. Always call the hall before visiting to confirm requirements and availability.
🆘Emergency Hotlines
Verified April 2026. In a life-threatening emergency, dial 911 first.
24/7 helpline for children in crisis, abuse, and trafficking cases.
Notice a hotline change? Report it so we can update this page.
Frequently Asked Questions about Barangay Olandao
Where is Barangay Olandao located?▾
Barangay Olandao is a barangay in the municipality of Basay, Negros Oriental, Negros Island Region, Philippines.
What is the address of the Barangay Olandao hall?▾
Barangay Olandao is located in Basay, Negros Oriental, Negros Island Region, Philippines. The exact street address of the barangay hall is being verified.
Who is the Punong Barangay of Barangay Olandao?▾
The current Punong Barangay information for Barangay Olandao is being verified. The position is elected during the Barangay and SK Elections (BSKE), with the next election scheduled for Monday, November 2, 2026.
How can I contact Barangay Olandao?▾
Verified contact information for Barangay Olandao is being collected. You can reach the local barangay hall in person or check the official Basay LGU website. Submit verified information using the form on this page.
What municipality is Barangay Olandao part of?▾
Barangay Olandao is one of 10 barangays in the municipality of Basay, Negros Oriental, Philippines.
Is Barangay Olandao urban or rural?▾
Barangay Olandao is officially classified as rural by the Philippine Statistics Authority. Rural classification is applied to barangays with lower population density and predominantly non-built-up land use — often agricultural, coastal, or upland areas with more dispersed housing.
What is the income classification of Basay?▾
Basay is classified as a 4th by the Bureau of Local Government Finance. This classification is based on the municipality's annual regular income and broadly indicates the size of the local government's budget for services like health, sanitation, peace and order, and infrastructure that reach barangays such as Barangay Olandao.
Has the population of Barangay Olandao been growing or shrinking?▾
Between the 2020 and 2024 censuses, Barangay Olandao went from 1,119 residents to 1,040 — a change of -7.1% over the intercensal period. The barangay is shrinking significantly based on figures published by the Philippine Statistics Authority in the 2024 POPCEN.
What region of the Philippines is Barangay Olandao in?▾
Barangay Olandao is part of the Negros Island Region administrative region of the Philippines. Within Negros Island Region, the barangay falls under the province of Negros Oriental, and is one of 10 barangays administered by Basay.
How many barangays are in Basay?▾
Basay has 10 barangays, including Barangay Olandao. You can browse the full list on our Basay page.
How many residents does Barangay Olandao have?▾
Barangay Olandao had a population of 1,040 residents according to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority.
What is the ZIP code of Barangay Olandao?▾
The primary PHLPost ZIP code for Basay is 6222. In most Philippine municipalities, this same ZIP applies to every barangay in the city. However, in NCR cities (Manila, Quezon City, Makati, etc.) and a few large cities like Cebu City, Davao City, and Baguio, each barangay may have its own ZIP code. For the most accurate ZIP for Barangay Olandao, confirm with PHLPost at https://phlpost.gov.ph.
When was this page last updated?▾
The information on this page for Barangay Olandao was last updated on 2026-05-25. Barangay leadership, contact information, and hours can change — always verify directly with the barangay hall before relying on this information for any official transaction.
Looking for general barangay-services questions — barangay clearance, cedula, BSKE 2026, or emergency hotlines? See our barangay services guides.
Editorial process and update cadence documented in our methodology. Errors or corrections welcome via the submission form above. This page was last updated on 2026-05-25.
