Barangay San Antonio is a local government unit in Oton, Iloilo, in the Western Visayas region of the Philippines. It had a population of 2,340 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 Oton. In NCR and some large cities, barangays can have different ZIPs. Confirm with PHLPost.
Punong Barangay
Paul Mediavilla Buenafe(2023 - 2026 term)
Next BSKE
November 2, 2026
Barangay San Antonio · Data updated 2026-05-29
About Barangay San Antonio
Barangay San Antonio forms part of Oton, a municipality in Iloilo, and is classified as a mid-sized barangay.
According to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority, Barangay San Antonio had a population of 2,340. This made it the 17th largest of 37 barangays in Oton by population, placing it in the middle tier of the municipality. Residents of Barangay San Antonio accounted for approximately 2.34% of the total population of Oton, which stood at 99,920 in the same 2024 POPCEN reference period.
Read more about Barangay San AntonioShow less
Comparing the 2020 CPH against the 2024 POPCEN, Barangay San Antonio moved from 2,435 residents to 2,340, an intercensal change of -3.9%. The trajectory indicates a contracting community. Barangay San Antonio is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.
Oton is a municipality comprising 37 barangays, and serves as the governing unit directly responsible for local services in Barangay San Antonio, including public health, sanitation, peace and order, and civil registration. Within the wider province of Iloilo, which contains 1,901 barangays across its component cities and municipalities, Barangay San Antonio ranks 268th by 2024 POPCEN population. Iloilo is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.
Like every Philippine barangay, Barangay San Antonio is led by an elected Punong Barangay (barangay captain) supported by seven Sangguniang Barangay members (kagawads), an SK Chairperson, a Barangay Secretary, and a Barangay Treasurer. The next Barangay and Sangguniang Kabataan Elections (BSKE) are scheduled for Monday, November 2, 2026, with officials serving four-year terms under Republic Act No. 12232.
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.
Important: Officials shown here reflect the 2023 - 2026 term. Barangay leadership can change due to resignation, succession, or special circumstances. Always verify directly with Oton or the barangay hall before relying on this information for any official transaction, legal matter, or formal communication. The next Barangay and SK Elections are scheduled for Monday, November 2, 2026.
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Population history of Barangay San Antonio from official Philippine Statistics Authority census releases.
Census
Population
Change
% change
2015 Census
2,696
—
—
2020 CPH
2,435
-261
-9.7%
2024 POPCEN
2,340
-95
-3.9%
2015–2020: -9.7% total (-2.02%/yr).2020–2024: -3.9% total (-0.99%/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 Oton
17thof 37
Among the upper half of Oton by population.
Share of Oton
2.3%
of the municipality's total 99,920 residents.
Rank in Iloilo
268thof 1,901
Province-wide percentile: 86.
PSA Classification
Rural
Lower density, predominantly non-built-up land use.
Income Classification
1st
BLGF highest fiscal capacity tier.
Oton (municipality) class
1st
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 San Antonio in Oton 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.
Notice a hotline change? Report it so we can update this page.
Frequently Asked Questions about Barangay San Antonio
Where is Barangay San Antonio located?▾
Barangay San Antonio is a barangay in the municipality of Oton, Iloilo, Western Visayas, Philippines.
What is the address of the Barangay San Antonio hall?▾
Barangay San Antonio is located in Oton, Iloilo, Western Visayas, Philippines. The exact street address of the barangay hall is being verified.
Who is the Punong Barangay of Barangay San Antonio?▾
The Punong Barangay of Barangay San Antonio is Paul Mediavilla Buenafe (2023 - 2026 term). The next Barangay and Sangguniang Kabataan Elections are scheduled for Monday, November 2, 2026.
How can I contact Barangay San Antonio?▾
You can contact Barangay San Antonio via phone at 09208459700.
What municipality is Barangay San Antonio part of?▾
Barangay San Antonio is one of 37 barangays in the municipality of Oton, Iloilo, Philippines.
Is Barangay San Antonio urban or rural?▾
Barangay San Antonio 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 Oton?▾
Oton is classified as a 1st 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 San Antonio.
Has the population of Barangay San Antonio been growing or shrinking?▾
Between the 2020 and 2024 censuses, Barangay San Antonio went from 2,435 residents to 2,340 — a change of -3.9% over the intercensal period. The barangay is slowly contracting based on figures published by the Philippine Statistics Authority in the 2024 POPCEN.
What region of the Philippines is Barangay San Antonio in?▾
Barangay San Antonio is part of the Western Visayas administrative region of the Philippines. Within Western Visayas, the barangay falls under the province of Iloilo, and is one of 37 barangays administered by Oton.
How many barangays are in Oton?▾
Oton has 37 barangays, including Barangay San Antonio. You can browse the full list on our Oton page.
How many residents does Barangay San Antonio have?▾
Barangay San Antonio had a population of 2,340 residents according to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority.
What is the ZIP code of Barangay San Antonio?▾
The primary PHLPost ZIP code for Oton is 5020. 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 San Antonio, confirm with PHLPost at https://phlpost.gov.ph.
When was this page last updated?▾
The information on this page for Barangay San Antonio was last updated on 2026-05-29. 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.
Helpful Guides for Residents of Barangay San Antonio
Editorial process and update cadence documented in our methodology. Errors or corrections welcome via the submission form above. This page was last updated on 2026-05-29.
