Iboy, Municipality of San Ildefonso, Province of Ilocos Sur
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | Ilocos Region (Region I) |
| Province | Ilocos Sur |
| Municipality | San Ildefonso |
| Postal code | 2728 |
| Population (2020) | 467 |
| Philippine major island(s) | Luzon |
| Coordinates | 17.6252, 120.3894 (17° 38' North, 120° 23' East) |
| Estimated elevation above sea level | 11.8 meters (38.7 feet) |
Iboy is a barangay in the municipality of San Ildefonso, in the province of Ilocos Sur. Its population as determined by the 2020 Census was 467. This represented 5.70% of the total population of San Ildefonso.
Demographics
Households
The household population of Iboy in the 2015 Census was 446 broken down into 101 households or an average of 4.42 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 304 | 53 | 5.74 | |
| 328 | 62 | 5.29 | |
| 342 | 69 | 4.96 | |
| 438 | 93 | 4.71 | |
| 420 | 91 | 4.62 | |
| 446 | 101 | 4.42 |
Population by age group
According to the 2015 Census, the age group with the highest population in Iboy is 10 to 14, with 55 individuals. Conversely, the age group with the lowest population is 80 and over, with 3 individuals.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 8 | 1.79% |
| 1 to 4 | 24 | 5.38% |
| 5 to 9 | 41 | 9.19% |
| 10 to 14 | 55 | 12.33% |
| 15 to 19 | 32 | 7.17% |
| 20 to 24 | 40 | 8.97% |
| 25 to 29 | 39 | 8.74% |
| 30 to 34 | 29 | 6.50% |
| 35 to 39 | 29 | 6.50% |
| 40 to 44 | 35 | 7.85% |
| 45 to 49 | 28 | 6.28% |
| 50 to 54 | 19 | 4.26% |
| 55 to 59 | 17 | 3.81% |
| 60 to 64 | 22 | 4.93% |
| 65 to 69 | 7 | 1.57% |
| 70 to 74 | 7 | 1.57% |
| 75 to 79 | 11 | 2.47% |
| 80 and over | 3 | 0.67% |
| Total | 446 | 100.00% |
| ||
Historical population
The population of Iboy grew from 304 in 1990 to 467 in 2020, an increase of 163 people over the course of 30 years. The latest census figures in 2020 denote a positive growth rate of 0.97%, or an increase of 21 people, from the previous population of 446 in 2015.
| Census date | Population | Growth rate |
|---|---|---|
| 304 | – | |
| 328 | 1.43% | |
| 342 | 0.90% | |
| 438 | 3.47% | |
| 420 | -1.52% | |
| 446 | 1.15% | |
| 467 | 0.97% |
Location
Iboy is situated at approximately 17.6252, 120.3894, in the island of Luzon. Elevation at these coordinates is estimated at 11.8 meters or 38.7 feet above mean sea level.
Adjacent barangays
Iboy 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.