Barangay Don Mariano Perez, Sr. is a barangay in Diffun, Quirino, in the Cagayan Valley (Region II) of the Philippines. Registered under PSGC code 0205703010 with ZIP code 3401, it had a 2020 Census population of 804. That makes it the 27th most populous of Diffun's 33 barangays (1.4% of the municipal total of 58,254). It sits at about 600.5 m above sea level at coordinates 16.4803, 121.3754.
Overview
Barangay Don Mariano Perez, Sr. is a local community situated within Diffun, Quirino. 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 Don Mariano Perez, Sr. 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 Don Mariano Perez, Sr. is expanding, contracting, or holding steady within Diffun, a signal that informs housing demand, school-age population, and the delivery of local public services.
| Census Date | Population | Growth | Net |
|---|---|---|---|
| 1990 May 1 | 431 | — | — |
| 1995 Sep 1 | 582 | +5.79% | 151 |
| 2000 May 1 | 656 | +2.6% | 74 |
| 2007 Aug 1 | 534 | -2.8% | -122 |
| 2010 May 1 | 808 | +16.27% | 274 |
| 2015 Aug 1 | 792 | -0.38% | -16 |
| 2020 May 1 | 804 | +0.32% | 12 |
Age Distribution (2015 Census)
The age profile of Barangay Don Mariano Perez, Sr. 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 Diffun.
| Age Group | Population | Share |
|---|---|---|
| Under 1 | 14 | 1.77% |
| 1 to 4 | 75 | 9.47% |
| 5 to 9 | 82 | 10.35% |
| 10 to 14 | 84 | 10.61% |
| 15 to 19 | 109 | 13.76% |
| 20 to 24 | 97 | 12.25% |
| 25 to 29 | 55 | 6.94% |
| 30 to 34 | 59 | 7.45% |
| 35 to 39 | 34 | 4.29% |
| 40 to 44 | 50 | 6.31% |
| 45 to 49 | 32 | 4.04% |
| 50 to 54 | 31 | 3.91% |
| 55 to 59 | 16 | 2.02% |
| 60 to 64 | 23 | 2.9% |
| 65 to 69 | 11 | 1.39% |
| 70 to 74 | 16 | 2.02% |
| 75 to 79 | 2 | 0.25% |
| 80 and over | 2 | 0.25% |
Young population (0-14) · 32.2%
Working-age population (15-64) · 63.89%
Older population (65+) · 3.91%
Household Trends
Household formation in Barangay Don Mariano Perez, Sr. 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 Diffun.
| Census Date | Households | Avg. Size |
|---|---|---|
| 1990 May 1 | 83 | 5.19 |
| 1995 Sep 1 | 108 | 5.39 |
| 2000 May 1 | 129 | 5.09 |
| 2007 Aug 1 | 120 | 4.45 |
| 2010 May 1 | 158 | 5.11 |
| 2015 Aug 1 | 160 | 4.89 |
Location & Environment
Geographic coordinates, comparative elevation, and environmental risk profile.
Relative rank among Diffun's barangays by 2020 population.
Elevation profile, compared to the 141.2 m municipal median.
Barangay Don Mariano Perez, Sr. is located at approximately 16.4803, 121.3754 (16°28'49" N, 121°22'31" E) on Luzon , roughly 600.5 meters above sea level.
Hazard Profile & Risk Context
Cagayan Valley lies along the main track of Pacific tropical cyclones and sees frequent typhoon passage during the June to November season.
HighCagayan Valley has moderate seismic exposure from regional fault systems, with occasional felt earthquakes.
ModerateAt roughly 600.5 m elevation, steeper upland terrain can raise landslide susceptibility during prolonged or heavy rainfall.
ModerateGeneral 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 Don Mariano Perez, Sr. in municipality of Diffun, province of Quirino 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
Surrounding Area & Local Culture
Nearby communities, cultural landmarks, and local services in Diffun.
Nearest Barangays
Local Festivals
Regional Culinary Highlights
QuirinoÔÇÖs version of the regional noodle staple; often uses local farm-fresh eggs for the batil (soup) and homegrow...
InasinA traditional method of preserving meat (often pork or carabao) using only salt, which is then dried or smoked; a staple...
Pinakbet (Quirino Style)Differs from lowland versions by incorporating forest-foraged vegetables and mushrooms, lending it a more "earthy" and w...
Adobong Agta/IlongotIndigenous-inspired adobo using wild meats or forest-sourced proteins, often prepared with native ginger and wild chilie...
Other Barangays in Diffun
Frequently Asked Questions
Where is Barangay Don Mariano Perez, Sr. located?
Barangay Don Mariano Perez, Sr. is a barangay in Diffun, Quirino, in the Cagayan Valley (Region II) of the Philippines. Registered under PSGC code 0205703010 with ZIP code 3401, it had a 2020 Census population of 804. That makes it the 27th most populous of Diffun's 33 barangays (1.4% of the municipal total of 58,254). It sits at about 600.5 m above sea level at coordinates 16.4803, 121.3754.
What is the population of Barangay Don Mariano Perez, Sr.?
804 as of the 2020 Census, the 27th largest of Diffun's 33 barangays (1.4% of the municipal total).
What is the PSGC code of Barangay Don Mariano Perez, Sr.?
The PSGC code is 0205703010, a nine-digit identifier in the PSA classification.
What is the ZIP code of Barangay Don Mariano Perez, Sr.?
ZIP 3401, covering Diffun and its barangays.
How many barangays does Diffun have?
33 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.