Alagao, Municipality of San Ildefonso, Province of Bulacan

Summary data
Typebarangay
Island groupLuzon
RegionCentral Luzon (Region III)
ProvinceBulacan
MunicipalitySan Ildefonso
Postal code3010
Population (2020)3,607
Philippine major island(s)Luzon
Coordinates15.0513, 121.0452 (15° 3' North, 121° 3' East)
Estimated elevation above sea level80.5 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.

details
Number of households in Alagao (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
1,4762765.35
1,7853525.07
2,2764475.09
2,6165055.18
2,9866774.41
3,3658044.19

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.

details
Population of Alagao by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 1641.83%
1 to 43209.13%
5 to 937210.61%
10 to 143329.47%
15 to 193199.10%
20 to 2436210.33%
25 to 293088.78%
30 to 342898.24%
35 to 392627.47%
40 to 441855.28%
45 to 492015.73%
50 to 541464.16%
55 to 591233.51%
60 to 64872.48%
65 to 69541.54%
70 to 74431.23%
75 to 79270.77%
80 and over120.34%
Total3,506100.00%
  • Youth Dependency Ratio: 47.68
  • Old Age Dependency Ratio: 5.96
  • Total Dependency Ratio: 53.64
  • Median Age: 24.78

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 growth rate of 0.60%, or an increase of 101 people, from the previous population of 3,506 in 2015.

Population of Alagao (1990‑2020)
Census datePopulationGrowth rate
1,476
1,7853.63%
2,2765.35%
2,6552.15%
3,1196.04%
3,5062.25%
3,6070.60%

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

  1. Data on population, and households, are from the Philippine Statistics Authority.
  2. Postal code information is from the Philippine Postal Corporation.
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