Barangay San Guillermo is a local government unit in San Nicolas, Ilocos Norte, in the Ilocos Region region of the Philippines. It had a population of 1,887 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 San Nicolas. In NCR and some large cities, barangays can have different ZIPs. Confirm with PHLPost.
Punong Barangay
Robinson Bonilla Barayuga(2023 - 2026 term)
Next BSKE
November 2, 2026
Barangay San Guillermo · Data updated 2026-05-25
About Barangay San Guillermo
Barangay San Guillermo forms part of San Nicolas, a municipality 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 San Guillermo had a population of 1,887. This made it the 8th largest of 24 barangays in San Nicolas by population, placing it in the upper half of the municipality. Residents of Barangay San Guillermo accounted for approximately 4.82% of the total population of San Nicolas, which stood at 39,116 in the same 2024 POPCEN reference period.
Read more about Barangay San GuillermoShow less
Comparing the 2020 CPH against the 2024 POPCEN, Barangay San Guillermo moved from 1,678 residents to 1,887, an intercensal change of +12.5%. The trajectory indicates a growing community. Barangay San Guillermo is officially classified as urban, reflecting the density and built-up character of the area.
San Nicolas is a municipality comprising 24 barangays, and serves as the governing unit directly responsible for local services in Barangay San Guillermo, 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 Guillermo ranks 52nd 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 San Nicolas 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 Guillermo from official Philippine Statistics Authority census releases.
Census
Population
Change
% change
2015 Census
1,777
—
—
2020 CPH
1,678
-99
-5.6%
2024 POPCEN
1,887
+209
+12.5%
2015–2020: -5.6% total (-1.14%/yr).2020–2024: +12.5% total (+2.98%/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 San Nicolas
8thof 24
Among the upper half of San Nicolas by population.
Share of San Nicolas
4.8%
of the municipality's total 39,116 residents.
Rank in Ilocos Norte
52ndof 559
Province-wide percentile: 91.
PSA Classification
Urban
Higher density, predominantly built-up land use.
Income Classification
1st
BLGF highest fiscal capacity tier.
San Nicolas (municipality) class
2nd
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 Guillermo in San Nicolas 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.
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Frequently Asked Questions about Barangay San Guillermo
Where is Barangay San Guillermo located?▾
Barangay San Guillermo is a barangay in the municipality of San Nicolas, Ilocos Norte, Ilocos Region, Philippines.
What is the address of the Barangay San Guillermo hall?▾
Barangay San Guillermo is located in San Nicolas, Ilocos Norte, Ilocos Region, Philippines. The exact street address of the barangay hall is being verified.
Who is the Punong Barangay of Barangay San Guillermo?▾
The Punong Barangay of Barangay San Guillermo is Robinson Bonilla Barayuga (2023 - 2026 term). The next Barangay and Sangguniang Kabataan Elections are scheduled for Monday, November 2, 2026.
How can I contact Barangay San Guillermo?▾
You can contact Barangay San Guillermo via phone at 6774139.
What municipality is Barangay San Guillermo part of?▾
Barangay San Guillermo is one of 24 barangays in the municipality of San Nicolas, Ilocos Norte, Philippines.
Is Barangay San Guillermo urban or rural?▾
Barangay San Guillermo 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 municipality.
What is the income classification of San Nicolas?▾
San Nicolas is classified as a 2nd 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 Guillermo.
Has the population of Barangay San Guillermo been growing or shrinking?▾
Between the 2020 and 2024 censuses, Barangay San Guillermo went from 1,678 residents to 1,887 — a change of +12.5% 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 Guillermo in?▾
Barangay San Guillermo 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 24 barangays administered by San Nicolas.
How many barangays are in San Nicolas?▾
San Nicolas has 24 barangays, including Barangay San Guillermo. You can browse the full list on our San Nicolas page.
How many residents does Barangay San Guillermo have?▾
Barangay San Guillermo had a population of 1,887 residents according to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority.
What is the ZIP code of Barangay San Guillermo?▾
The primary PHLPost ZIP code for San Nicolas is 2901. 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 Guillermo, confirm with PHLPost at https://phlpost.gov.ph.
When was this page last updated?▾
The information on this page for Barangay San Guillermo 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 Guillermo
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.
