Barangay Calasag is a local government unit in San Ildefonso, Bulacan, in the Central Luzon region of the Philippines. It had a population of 3,915 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 Ildefonso. In NCR and some large cities, barangays can have different ZIPs. Confirm with PHLPost.
Punong Barangay
Edmundo Apostol Gonzales(2023 - 2026 term)
Next BSKE
November 2, 2026
Barangay Calasag · Data updated 2026-05-24
About Barangay Calasag
Situated in San Ildefonso, Bulacan, Barangay Calasag is one of 36 barangays that make up the municipality within Central Luzon.
According to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority, Barangay Calasag had a population of 3,915. This made it the 12th largest of 36 barangays in San Ildefonso by population, placing it in the middle tier of the municipality. Residents of Barangay Calasag accounted for approximately 3.18% of the total population of San Ildefonso, which stood at 123,140 in the same 2024 POPCEN reference period.
Read more about Barangay CalasagShow less
Between the 2020 Census of Population and Housing and the 2024 POPCEN, the population of Barangay Calasag changed from 3,705 to 3,915, a shift of +5.7% over the four-year period. This places the barangay among those with growing populations in San Ildefonso. Barangay Calasag is officially classified as urban, reflecting the density and built-up character of the area.
San Ildefonso is a municipality comprising 36 barangays, and serves as the governing unit directly responsible for local services in Barangay Calasag, including public health, sanitation, peace and order, and civil registration. Within the wider province of Bulacan, which contains 569 barangays across its component cities and municipalities, Barangay Calasag ranks 319th by 2024 POPCEN population. Bulacan 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 Calasag 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 San Ildefonso 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 Calasag from official Philippine Statistics Authority census releases.
Census
Population
Change
% change
2015 Census
3,578
—
—
2020 CPH
3,705
+127
+3.5%
2024 POPCEN
3,915
+210
+5.7%
2015–2020: +3.5% total (+0.70%/yr).2020–2024: +5.7% total (+1.39%/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 Ildefonso
12thof 36
Among the upper half of San Ildefonso by population.
Share of San Ildefonso
3.2%
of the municipality's total 123,140 residents.
Rank in Bulacan
319thof 569
Province-wide percentile: 44.
PSA Classification
Urban
Higher density, predominantly built-up land use.
Income Classification
1st
BLGF highest fiscal capacity tier.
San Ildefonso (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 Calasag in San Ildefonso 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 Calasag
Where is Barangay Calasag located?▾
Barangay Calasag is a barangay in the municipality of San Ildefonso, Bulacan, Central Luzon, Philippines.
What is the address of the Barangay Calasag hall?▾
Barangay Calasag is located in San Ildefonso, Bulacan, Central Luzon, Philippines. The exact street address of the barangay hall is being verified.
Who is the Punong Barangay of Barangay Calasag?▾
The Punong Barangay of Barangay Calasag is Edmundo Apostol Gonzales (2023 - 2026 term). The next Barangay and Sangguniang Kabataan Elections are scheduled for Monday, November 2, 2026.
How can I contact Barangay Calasag?▾
You can contact Barangay Calasag via phone at 09677410783.
What municipality is Barangay Calasag part of?▾
Barangay Calasag is one of 36 barangays in the municipality of San Ildefonso, Bulacan, Philippines.
Is Barangay Calasag urban or rural?▾
Barangay Calasag 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 Ildefonso?▾
San Ildefonso 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 Calasag.
Has the population of Barangay Calasag been growing or shrinking?▾
Between the 2020 and 2024 censuses, Barangay Calasag went from 3,705 residents to 3,915 — a change of +5.7% 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 Calasag in?▾
Barangay Calasag is part of the Central Luzon administrative region of the Philippines. Within Central Luzon, the barangay falls under the province of Bulacan, and is one of 36 barangays administered by San Ildefonso.
How many barangays are in San Ildefonso?▾
San Ildefonso has 36 barangays, including Barangay Calasag. You can browse the full list on our San Ildefonso page.
How many residents does Barangay Calasag have?▾
Barangay Calasag had a population of 3,915 residents according to the 2024 POPCEN (Census of Population) published by the Philippine Statistics Authority.
What is the ZIP code of Barangay Calasag?▾
The primary PHLPost ZIP code for San Ildefonso is 3010. 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 Calasag, confirm with PHLPost at https://phlpost.gov.ph.
When was this page last updated?▾
The information on this page for Barangay Calasag was last updated on 2026-05-24. 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.
Editorial process and update cadence documented in our methodology. Errors or corrections welcome via the submission form above. This page was last updated on 2026-05-24.
