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 City of Ilagan. In NCR and some large cities, barangays can have different ZIPs. Confirm with PHLPost.
Punong Barangay
Joseph Abul Uy JR.(2023 - 2026 term)
Next BSKE
November 2, 2026
Barangay Santa Isabel Sur · Data updated 2026-05-25
About Barangay Santa Isabel Sur
Barangay Santa Isabel Sur forms part of City of Ilagan, a city in Isabela, and is classified as a large barangay.
According to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority, Barangay Santa Isabel Sur had a population of 5,011. This made it the 3rd largest of 91 barangays in City of Ilagan by population, placing it among the most populous barangays of the city. Residents of Barangay Santa Isabel Sur accounted for approximately 3.06% of the total population of City of Ilagan, which stood at 164,020 in the same 2024 POPCEN reference period.
Read more about Barangay Santa Isabel SurShow less
Comparing the 2020 CPH against the 2024 POPCEN, Barangay Santa Isabel Sur moved from 5,002 residents to 5,011, an intercensal change of +0.2%. The trajectory indicates a slowly expanding community. Barangay Santa Isabel Sur is officially classified as urban, reflecting the density and built-up character of the area.
City of Ilagan is a city comprising 91 barangays, and serves as the governing unit directly responsible for local services in Barangay Santa Isabel Sur, including public health, sanitation, peace and order, and civil registration. Within the wider province of Isabela, which contains 1,055 barangays across its component cities and municipalities, Barangay Santa Isabel Sur ranks 32nd by 2024 POPCEN population. Isabela is classified as a 1st by the Bureau of Local Government Finance, a category that reflects the province's annual regular income.
Barangay Santa Isabel Sur 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.
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 City of Ilagan 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 Santa Isabel Sur from official Philippine Statistics Authority census releases.
Census
Population
Change
% change
2015 Census
4,612
—
—
2020 CPH
5,002
+390
+8.5%
2024 POPCEN
5,011
+9
+0.2%
2015–2020: +8.5% total (+1.64%/yr).2020–2024: +0.2% total (+0.04%/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 City of Ilagan
3rdof 91
Among the top 10% of City of Ilagan by population.
Share of City of Ilagan
3.1%
of the city's total 164,020 residents.
Rank in Isabela
32ndof 1,055
Province-wide percentile: 97.
PSA Classification
Urban
Higher density, predominantly built-up land use.
Income Classification
1st
BLGF highest fiscal capacity tier.
City of Ilagan (city) class
1st (as Mun)
Parent city 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 Santa Isabel Sur in City of Ilagan 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.
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Frequently Asked Questions about Barangay Santa Isabel Sur
Where is Barangay Santa Isabel Sur located?▾
Barangay Santa Isabel Sur is a barangay in the City of Ilagan, Isabela, Cagayan Valley, Philippines.
What is the address of the Barangay Santa Isabel Sur hall?▾
Barangay Santa Isabel Sur is located in City of Ilagan, Isabela, Cagayan Valley, Philippines. The exact street address of the barangay hall is being verified.
Who is the Punong Barangay of Barangay Santa Isabel Sur?▾
The Punong Barangay of Barangay Santa Isabel Sur is Joseph Abul Uy JR. (2023 - 2026 term). The next Barangay and Sangguniang Kabataan Elections are scheduled for Monday, November 2, 2026.
How can I contact Barangay Santa Isabel Sur?▾
Verified contact information for Barangay Santa Isabel Sur is being collected. You can reach the local barangay hall in person or check the official City of Ilagan LGU website. Submit verified information using the form on this page.
What city is Barangay Santa Isabel Sur part of?▾
Barangay Santa Isabel Sur is one of 91 barangays in the City of Ilagan, Isabela, Philippines.
Is Barangay Santa Isabel Sur urban or rural?▾
Barangay Santa Isabel Sur is officially classified as urban by the Philippine Statistics Authority. Urban classification reflects higher population density and a more built-up character — typically more permanent housing, paved roads, and proximity to commercial activity than rural barangays in the same city.
What is the income classification of City of Ilagan?▾
City of Ilagan is classified as a 1st (as mun) by the Bureau of Local Government Finance. This classification is based on the city'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 Santa Isabel Sur.
Has the population of Barangay Santa Isabel Sur been growing or shrinking?▾
Between the 2020 and 2024 censuses, Barangay Santa Isabel Sur went from 5,002 residents to 5,011 — a change of +0.2% over the intercensal period. The barangay is broadly stable based on figures published by the Philippine Statistics Authority in the 2024 POPCEN.
What region of the Philippines is Barangay Santa Isabel Sur in?▾
Barangay Santa Isabel Sur is part of the Cagayan Valley administrative region of the Philippines. Within Cagayan Valley, the barangay falls under the province of Isabela, and is one of 91 barangays administered by City of Ilagan.
How many barangays are in City of Ilagan?▾
City of Ilagan has 91 barangays, including Barangay Santa Isabel Sur. You can browse the full list on our City of Ilagan page.
How many residents does Barangay Santa Isabel Sur have?▾
Barangay Santa Isabel Sur had a population of 5,011 residents according to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority.
What is the ZIP code of Barangay Santa Isabel Sur?▾
The primary PHLPost ZIP code for City of Ilagan is 3300. 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 Santa Isabel Sur, confirm with PHLPost at https://phlpost.gov.ph.
When was this page last updated?▾
The information on this page for Barangay Santa Isabel Sur 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.
Helpful Guides for Residents of Barangay Santa Isabel Sur
Information on Barangay Santa Isabel Sur, City of Ilagan is compiled from the following authoritative sources. Each citation links to the primary publisher.
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.
