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Primary PHLPost ZIP for City of Laoag. In NCR and some large cities, barangays can have different ZIPs. Confirm with PHLPost.
Punong Barangay
John Aldrick Santos Peralta(2023 - 2026 term)
Next BSKE
November 2, 2026
Barangay No. 4, San Guillermo (Pob.) · Data updated 2026-06-29
Historical Population
Philippine Statistics Authority
-10.4% since 2015
Population history of Barangay No. 4, San Guillermo (Pob.) from official Philippine Statistics Authority census releases.
Census
Population
Change
% change
2015 Census
1,256
—
—
2020 CPH
1,190
-66
-5.3%
2024 POPCEN
1,126
-64
-5.4%
2015–2020: -5.3% total (-1.07%/yr).2020–2024: -5.4% total (-1.37%/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 Laoag
42ndof 80
Among the lower half of City of Laoag by population.
Share of City of Laoag
1.0%
of the city's total 112,117 residents.
Rank in Ilocos Norte
212thof 559
Province-wide percentile: 62.
PSA Classification
Rural
Lower density, predominantly non-built-up land use.
Income Classification
3rd
BLGF upper-middle fiscal capacity tier.
City of Laoag (city) class
3rd
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.
About Barangay No. 4, San Guillermo (Pob.)
Barangay No. 4, San Guillermo (Pob.) forms part of City of Laoag, a city in Ilocos Norte, and is classified as a small barangay.
According to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority, Barangay No. 4, San Guillermo (Pob.) had a population of 1,126. This made it the 42nd largest of 80 barangays in City of Laoag by population, placing it in the middle tier of the city. Residents of Barangay No. 4, San Guillermo (Pob.) accounted for approximately 1.00% of the total population of City of Laoag, which stood at 112,117 in the same 2024 POPCEN reference period.
Read more about Barangay No. 4, San Guillermo (Pob.)Show less
Comparing the 2020 CPH against the 2024 POPCEN, Barangay No. 4, San Guillermo (Pob.) moved from 1,190 residents to 1,126, an intercensal change of -5.4%. The trajectory indicates a contracting community. Barangay No. 4, San Guillermo (Pob.) is officially classified as rural, a designation applied to barangays with lower population density and predominantly non-built-up land use.
City of Laoag is a city of 80 barangays, of which Barangay No. 4, San Guillermo (Pob.) is one. Within the wider province of Ilocos Norte, which contains 559 barangays across its component cities and municipalities, Barangay No. 4, San Guillermo (Pob.) ranks 212th 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.
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 Laoag 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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What you can request at Barangay No. 4, San Guillermo (Pob.)
These services are available at every barangay hall in the Philippines under Republic Act 7160 (Local Government Code). Visit Barangay No. 4, San Guillermo (Pob.) in City of Laoag 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 No. 4, San Guillermo (Pob.)
Where is Barangay No. 4, San Guillermo (Pob.) located?▾
Barangay No. 4, San Guillermo (Pob.) is a barangay in the City of Laoag, Ilocos Norte, Ilocos Region, Philippines.
What is the address of the Barangay No. 4, San Guillermo (Pob.) hall?▾
Barangay No. 4, San Guillermo (Pob.) is located in City of Laoag, Ilocos Norte, Ilocos Region, Philippines. The exact street address of the barangay hall is being verified.
Who is the Punong Barangay of Barangay No. 4, San Guillermo (Pob.)?▾
The Punong Barangay (barangay captain) of Barangay No. 4, San Guillermo (Pob.) is John Aldrick Santos Peralta (2023 - 2026 term).
How can I contact Barangay No. 4, San Guillermo (Pob.)?▾
You can contact Barangay No. 4, San Guillermo (Pob.) via phone at 09464654453.
What city is Barangay No. 4, San Guillermo (Pob.) part of?▾
Barangay No. 4, San Guillermo (Pob.) is one of 80 barangays in the City of Laoag, Ilocos Norte, Philippines.
Is Barangay No. 4, San Guillermo (Pob.) urban or rural?▾
Barangay No. 4, San Guillermo (Pob.) 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 City of Laoag?▾
City of Laoag is classified as a 3rd 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 No. 4, San Guillermo (Pob.).
Has the population of Barangay No. 4, San Guillermo (Pob.) been growing or shrinking?▾
Between the 2020 and 2024 censuses, Barangay No. 4, San Guillermo (Pob.) went from 1,190 residents to 1,126 — a change of -5.4% 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 No. 4, San Guillermo (Pob.) in?▾
Barangay No. 4, San Guillermo (Pob.) 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 80 barangays administered by City of Laoag.
How many barangays are in City of Laoag?▾
City of Laoag has 80 barangays, including Barangay No. 4, San Guillermo (Pob.). You can browse the full list on our City of Laoag page.
How many residents does Barangay No. 4, San Guillermo (Pob.) have?▾
Barangay No. 4, San Guillermo (Pob.) had a population of 1,126 residents according to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority.
What is the ZIP code of Barangay No. 4, San Guillermo (Pob.)?▾
The primary PHLPost ZIP code for City of Laoag is 2900. 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 No. 4, San Guillermo (Pob.), confirm with PHLPost at https://phlpost.gov.ph.
When was this page last updated?▾
The information on this page for Barangay No. 4, San Guillermo (Pob.) was last updated on 2026-06-29. 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 No. 4, San Guillermo (Pob.)
Information on Barangay No. 4, San Guillermo (Pob.), City of Laoag 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 2026-06-29.
