Alagao, Municipality of San Ildefonso, Province of Bulacan
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | Central Luzon (Region III) |
| Province | Bulacan |
| Municipality | San Ildefonso |
| Postal code | 3010 |
| Population (2020) | 3,607 |
| Philippine major island(s) | Luzon |
| Coordinates | 15.0513, 121.0452 (15° 3' North, 121° 3' East) |
| Estimated elevation above sea level | 80.5 meters (264.1 feet) |
Alagao is a barangay in the municipality of San Ildefonso, in the province of Bulacan. Its population as determined by the 2020 Census was 3,607. This represented 3.12% of the total population of San Ildefonso.
Demographics
Households
The household population of Alagao in the 2015 Census was 3,365 broken down into 804 households or an average of 4.19 members per household.
Trends in household population and size
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 1,476 | 276 | 5.35 | |
| 1,785 | 352 | 5.07 | |
| 2,276 | 447 | 5.09 | |
| 2,616 | 505 | 5.18 | |
| 2,986 | 677 | 4.41 | |
| 3,365 | 804 | 4.19 |
Population by age group
According to the 2015 Census, the age group with the highest population in Alagao is 5 to 9, with 372 individuals. Conversely, the age group with the lowest population is 80 and over, with 12 individuals.
Age distribution
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 64 | 1.83% |
| 1 to 4 | 320 | 9.13% |
| 5 to 9 | 372 | 10.61% |
| 10 to 14 | 332 | 9.47% |
| 15 to 19 | 319 | 9.10% |
| 20 to 24 | 362 | 10.33% |
| 25 to 29 | 308 | 8.78% |
| 30 to 34 | 289 | 8.24% |
| 35 to 39 | 262 | 7.47% |
| 40 to 44 | 185 | 5.28% |
| 45 to 49 | 201 | 5.73% |
| 50 to 54 | 146 | 4.16% |
| 55 to 59 | 123 | 3.51% |
| 60 to 64 | 87 | 2.48% |
| 65 to 69 | 54 | 1.54% |
| 70 to 74 | 43 | 1.23% |
| 75 to 79 | 27 | 0.77% |
| 80 and over | 12 | 0.34% |
| Total | 3,506 | 100.00% |
| ||
Historical population
The population of Alagao grew from 1,476 in 1990 to 3,607 in 2020, an increase of 2,131 people over the course of 30 years. The latest census figures in 2020 denote a positive annualized growth rate of 0.60%, or an increase of 101 people, from the previous population of 3,506 in 2015.
Trends in population growth
| Census date | Population | Annualized Growth Rate |
|---|---|---|
| 1,476 | – | |
| 1,785 | 3.63% | |
| 2,276 | 5.35% | |
| 2,655 | 2.15% | |
| 3,119 | 6.04% | |
| 3,506 | 2.25% | |
| 3,607 | 0.60% |
Location
Alagao is situated at approximately 15.0513, 121.0452, in the island of Luzon. Elevation at these coordinates is estimated at 80.5 meters or 264.1 feet above mean sea level.
Adjacent barangays
Alagao 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.