Barangay Profile

Barangay San Agustin

Alaminos, Laguna, Region IV-A

PSGC 0403401007 ZIP 4001
6,235 Population
2nd of 15 By Population
125.2 m Elevation
4001 ZIP Code
Philippines CALABARZON Laguna Alaminos Barangays San Agustin
Direct Answer

Barangay San Agustin is a barangay in Alaminos, Laguna, in the CALABARZON (Region IV-A) of the Philippines. Registered under PSGC code 0403401007 with ZIP code 4001, it had a 2020 Census population of 6,235. That makes it the 2nd most populous of Alaminos's 15 barangays (11.6% of the municipal total of 53,589). It sits at about 125.2 m above sea level at coordinates 14.0616, 121.2604.

Overview

Barangay San Agustin is a local community situated within Alaminos, Laguna. Serving as the primary administrative building block of local governance, it connects local residents directly to municipal public services, community development, and regional infrastructure networks.

Demographics & Population Trends

Insights into growth, age distributions, and household composition.

Historical Population Growth

Barangay San Agustin is tracked across every census round conducted by the Philippine Statistics Authority. The table and bar chart below trace its recorded population from 1990 to 2020, together with the annualized growth rate and net population change between counts. Read side by side, they show whether San Agustin is expanding, contracting, or holding steady within Alaminos, a signal that informs housing demand, school-age population, and the delivery of local public services.

Census Date Population Growth Net
1990 May 1 2,809 — —
1995 Sep 1 3,332 +3.25% 523
2000 May 1 3,857 +3.19% 525
2007 Aug 1 4,482 +2.09% 625
2010 May 1 4,650 +1.35% 168
2015 Aug 1 5,675 +3.87% 1,025
2020 May 1 6,235 +2% 560
2,809
3,332
3,857
4,482
4,650
5,675
6,235
1990
1995
2000
2007
2010
2015
2020

Age Distribution (2015 Census)

The age profile of Barangay San Agustin is drawn from the 2015 Census and grouped into five-year age bands. The table and bar chart below show how residents split across the young dependent population, the working-age population, and older residents, the balance that drives the local dependency ratio and median age. A community weighted toward working-age adults points to a wider labor force, while a broad base of children signals future demand for schools, health centers, and youth programs in Alaminos.

Age Group Population Share
Under 1 122 2.15%
1 to 4 480 8.46%
5 to 9 569 10.03%
10 to 14 513 9.04%
15 to 19 506 8.92%
20 to 24 510 8.99%
25 to 29 488 8.6%
30 to 34 464 8.18%
35 to 39 421 7.42%
40 to 44 314 5.53%
45 to 49 301 5.3%
50 to 54 286 5.04%
55 to 59 241 4.25%
60 to 64 195 3.44%
65 to 69 91 1.6%
70 to 74 71 1.25%
75 to 79 52 0.92%
80 and over 51 0.9%
Under 1
122
1 to 4
480
5 to 9
569
10 to 14
513
15 to 19
506
20 to 24
510
25 to 29
488
30 to 34
464
35 to 39
421
40 to 44
314
45 to 49
301
50 to 54
286
55 to 59
241
60 to 64
195
65 to 69
91
70 to 74
71
75 to 79
52
80 and over
51
1,684

Young population (0-14) · 29.67%

3,726

Working-age population (15-64) · 65.66%

265

Older population (65+) · 4.67%

Household Trends

Household formation in Barangay San Agustin is measured each census through the number of households and the average household size. The table and bar chart below plot how the household count has moved across the years. A rising number of households alongside a falling average size usually reflects smaller family units and new home formation, while a steady average size suggests multigenerational living remains common. These figures help gauge local housing stock, utility demand, and the pace of residential development in Alaminos.

Census Date Households Avg. Size
1990 May 1 548 5.13
1995 Sep 1 688 4.84
2000 May 1 791 4.85
2007 Aug 1 968 4.63
2010 May 1 1,006 4.62
2015 Aug 1 1,293 4.39
548
688
791
968
1,006
1,293
1990
1995
2000
2007
2010
2015

Location & Environment

Geographic coordinates, comparative elevation, and environmental risk profile.

2nd of 15

Relative rank among Alaminos's barangays by 2020 population.

125.2 m Elevation

Elevation profile, compared to the 147.6 m municipal median.

Barangay San Agustin is located at approximately 14.0616, 121.2604 (14°03'42" N, 121°15'37" E) on Luzon , roughly 125.2 meters above sea level.

Hazard Profile & Risk Context

Typhoon

CALABARZON lies along the main track of Pacific tropical cyclones and sees frequent typhoon passage during the June to November season.

High
Earthquake

CALABARZON is seismically active, with movement along nearby faults and trenches capable of producing strong earthquakes.

High
Flooding

Localized flooding can occur during heavy rainfall, depending on drainage and proximity to rivers and low ground.

Moderate

General planning context derived from topographic models. Refer to PHIVOLCS and municipal DRRMO advisories for official disaster risk mapping.

Governance & Administrative Record

Local administration setup and statutory registry parameters.

As the primary administrative tier in the Philippines, Barangay San Agustin in municipality of Alaminos, province of Laguna is led by an elected Punong Barangay alongside a Sangguniang Barangay composed of seven elected council members. The barangay council oversees neighborhood disputes via the Lupong Tagapamayapa, enacts local ordinances, and maintains peace and public safety.

Official Registry

PSGC Statutory Data Sheet

Barangay Name San Agustin
PSGC Code 0403401007
Population (2020) 6,235
Rank in Municipality 2nd of 15
Coordinates 14.0616, 121.2604 (14°03'42" N, 121°15'37" E)
Elevation 125.2 m above sea level
City / Municipality Alaminos
Province Laguna
Region CALABARZON
ZIP Code 4001

Surrounding Area & Local Culture

Nearby communities, cultural landmarks, and local services in Alaminos.

Local Directory

Businesses & Services in Alaminos

Verified hotels, restaurants, healthcare providers, financial services, and professional firms serving Barangay San Agustin and the wider Alaminos area.

12 Businesses Listed

Frequently Asked Questions

Where is Barangay San Agustin located?

Barangay San Agustin is a barangay in Alaminos, Laguna, in the CALABARZON (Region IV-A) of the Philippines. Registered under PSGC code 0403401007 with ZIP code 4001, it had a 2020 Census population of 6,235. That makes it the 2nd most populous of Alaminos's 15 barangays (11.6% of the municipal total of 53,589). It sits at about 125.2 m above sea level at coordinates 14.0616, 121.2604.

What is the population of Barangay San Agustin?

6,235 as of the 2020 Census, the 2nd largest of Alaminos's 15 barangays (11.6% of the municipal total).

What is the PSGC code of Barangay San Agustin?

The PSGC code is 0403401007, a nine-digit identifier in the PSA classification.

What is the ZIP code of Barangay San Agustin?

ZIP 4001, covering Alaminos and its barangays.

How many barangays does Alaminos have?

15 barangays per the PSA PSGC 1Q 2026 release.

Notes & Data Sources

  • Administrative boundaries sourced from the PSA PSGC 1Q 2026 dataset release.
  • Population figures and geographical metrics are integrated from official PhilAtlas and PSA Census records.