Barangay San Isidro is a local government unit in Dumalneg, Ilocos Norte, in the Ilocos Region region of the Philippines. It had a population of 1,122 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 Dumalneg. In NCR and some large cities, barangays can have different ZIPs. Confirm with PHLPost.
Punong Barangay
Karlene Cascayan Alawag(2023 - 2026 term)
Next BSKE
November 2, 2026
Barangay San Isidro · Data updated 2026-05-25
About Barangay San Isidro
Barangay San Isidro is a small barangay in the municipality of Dumalneg, located in the province of Ilocos Norte, in the Ilocos Region region of the Philippines.
According to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority, Barangay San Isidro had a population of 1,122. This made it the 1st largest of 4 barangays in Dumalneg by population, placing it among the most populous barangays of the municipality. Residents of Barangay San Isidro accounted for approximately 32.50% of the total population of Dumalneg, which stood at 3,452 in the same 2024 POPCEN reference period.
Read more about Barangay San IsidroShow less
Between the 2020 Census of Population and Housing and the 2024 POPCEN, the population of Barangay San Isidro changed from 1,026 to 1,122, a shift of +9.4% over the four-year period. This places the barangay among those with growing populations in Dumalneg. Barangay San Isidro is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.
Dumalneg is a municipality comprising 4 barangays, and serves as the governing unit directly responsible for local services in Barangay San Isidro, including public health, sanitation, peace and order, and civil registration. Within the wider province of Ilocos Norte, which contains 559 barangays across its component cities and municipalities, Barangay San Isidro ranks 214th by 2024 POPCEN population. Ilocos Norte 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.
Important: Officials shown here reflect the 2023 - 2026 term. Barangay leadership can change due to resignation, succession, or special circumstances. Always verify directly with Dumalneg 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 Isidro from official Philippine Statistics Authority census releases.
Census
Population
Change
% change
2015 Census
983
—
—
2020 CPH
1,026
+43
+4.4%
2024 POPCEN
1,122
+96
+9.4%
2015–2020: +4.4% total (+0.86%/yr).2020–2024: +9.4% total (+2.26%/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 Dumalneg
1stof 4
Among the top 10% of Dumalneg by population.
Share of Dumalneg
32.5%
of the municipality's total 3,452 residents.
Rank in Ilocos Norte
214thof 559
Province-wide percentile: 62.
PSA Classification
Rural
Lower density, predominantly non-built-up land use.
Income Classification
4th
BLGF middle fiscal capacity tier.
Dumalneg (municipality) class
5th
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 Isidro in Dumalneg 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 Isidro
Where is Barangay San Isidro located?▾
Barangay San Isidro is a barangay in the municipality of Dumalneg, Ilocos Norte, Ilocos Region, Philippines.
What is the address of the Barangay San Isidro hall?▾
Barangay San Isidro is located in Dumalneg, Ilocos Norte, Ilocos Region, Philippines. The exact street address of the barangay hall is being verified.
Who is the Punong Barangay of Barangay San Isidro?▾
The Punong Barangay of Barangay San Isidro is Karlene Cascayan Alawag (2023 - 2026 term). The next Barangay and Sangguniang Kabataan Elections are scheduled for Monday, November 2, 2026.
How can I contact Barangay San Isidro?▾
You can contact Barangay San Isidro via phone at 7749022.
What municipality is Barangay San Isidro part of?▾
Barangay San Isidro is one of 4 barangays in the municipality of Dumalneg, Ilocos Norte, Philippines.
Is Barangay San Isidro urban or rural?▾
Barangay San Isidro 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 Dumalneg?▾
Dumalneg is classified as a 5th 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 Isidro.
Has the population of Barangay San Isidro been growing or shrinking?▾
Between the 2020 and 2024 censuses, Barangay San Isidro went from 1,026 residents to 1,122 — a change of +9.4% over the intercensal period. The barangay is growing significantly based on figures published by the Philippine Statistics Authority in the 2024 POPCEN.
What region of the Philippines is Barangay San Isidro in?▾
Barangay San Isidro is part of the Ilocos Region administrative region of the Philippines. Within Ilocos Region, the barangay falls under the province of Ilocos Norte, and is one of 4 barangays administered by Dumalneg.
How many barangays are in Dumalneg?▾
Dumalneg has 4 barangays, including Barangay San Isidro. You can browse the full list on our Dumalneg page.
How many residents does Barangay San Isidro have?▾
Barangay San Isidro had a population of 1,122 residents according to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority.
What is the ZIP code of Barangay San Isidro?▾
The primary PHLPost ZIP code for Dumalneg is 2921. 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 Isidro, confirm with PHLPost at https://phlpost.gov.ph.
When was this page last updated?▾
The information on this page for Barangay San Isidro 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 San Isidro
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.
