Centro 1, Municipality of San Guillermo, Province of Isabela
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | Cagayan Valley (Region II) |
| Province | Isabela |
| Municipality | San Guillermo |
| Postal code | 3308 |
| Population (2020) | 2,575 |
| Philippine major island(s) | Luzon |
| Coordinates | 16.7218, 121.8100 (16° 43' North, 121° 49' East) |
| Estimated elevation above sea level | 110.6 meters (362.9 feet) |
Centro 1, formerly Poblacion, is a barangay in the municipality of San Guillermo, in the province of Isabela. Its population as determined by the 2020 Census was 2,575. This represented 12.31% of the total population of San Guillermo.
Demographics
Households
The household population of Centro 1 in the 2015 Census was 2,514 broken down into 563 households or an average of 4.47 members per household.
Trends in household population and size
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 1,509 | 255 | 5.92 | |
| 1,645 | 324 | 5.08 | |
| 1,713 | 333 | 5.14 | |
| 2,129 | 430 | 4.95 | |
| 2,346 | 526 | 4.46 | |
| 2,514 | 563 | 4.47 |
Population by age group
According to the 2015 Census, the age group with the highest population in Centro 1 is 10 to 14, with 275 individuals. Conversely, the age group with the lowest population is 80 and over, with 24 individuals.
Age distribution
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 56 | 2.22% |
| 1 to 4 | 206 | 8.18% |
| 5 to 9 | 273 | 10.84% |
| 10 to 14 | 275 | 10.92% |
| 15 to 19 | 241 | 9.57% |
| 20 to 24 | 239 | 9.49% |
| 25 to 29 | 218 | 8.66% |
| 30 to 34 | 182 | 7.23% |
| 35 to 39 | 150 | 5.96% |
| 40 to 44 | 139 | 5.52% |
| 45 to 49 | 131 | 5.20% |
| 50 to 54 | 126 | 5.00% |
| 55 to 59 | 85 | 3.38% |
| 60 to 64 | 49 | 1.95% |
| 65 to 69 | 57 | 2.26% |
| 70 to 74 | 41 | 1.63% |
| 75 to 79 | 26 | 1.03% |
| 80 and over | 24 | 0.95% |
| Total | 2,518 | 100.00% |
| ||
Historical population
The population of Centro 1 grew from 1,509 in 1990 to 2,575 in 2020, an increase of 1,066 people over the course of 30 years. The latest census figures in 2020 denote a positive annualized growth rate of 0.47%, or an increase of 57 people, from the previous population of 2,518 in 2015.
Trends in population growth
| Census date | Population | Annualized Growth Rate |
|---|---|---|
| 1,509 | – | |
| 1,645 | 1.63% | |
| 1,713 | 0.87% | |
| 2,129 | 3.04% | |
| 2,346 | 3.60% | |
| 2,518 | 1.36% | |
| 2,575 | 0.47% |
Location
Centro 1 is situated at approximately 16.7218, 121.8100, in the island of Luzon. Elevation at these coordinates is estimated at 110.6 meters or 362.9 feet above mean sea level.
Adjacent barangays
Centro 1 shares a common border with the following barangay(s):
Notes
- Data on population, and households, are from the Philippine Statistics Authority.
- Postal code information is from the Philippine Postal Corporation.