Alsem, Municipality of Vintar, Province of Ilocos Norte
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | Ilocos Region (Region I) |
| Province | Ilocos Norte |
| Municipality | Vintar |
| Postal code | 2915 |
| Population (2020) | 560 |
| Philippine major island(s) | Luzon |
| Coordinates | 18.2977, 120.7078 (18° 18' North, 120° 42' East) |
| Estimated elevation above sea level | 62.5 meters (205.1 feet) |
Alsem is a barangay in the municipality of Vintar, in the province of Ilocos Norte. Its population as determined by the 2020 Census was 560. This represented 1.68% of the total population of Vintar.
Demographics
Households
The household population of Alsem in the 2015 Census was 508 broken down into 134 households or an average of 3.79 members per household.
Trends in household population and size
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 483 | 101 | 4.78 | |
| 485 | 104 | 4.66 | |
| 505 | 109 | 4.63 | |
| 475 | 120 | 3.96 | |
| 545 | 121 | 4.50 | |
| 508 | 134 | 3.79 |
Population by age group
According to the 2015 Census, the age group with the highest population in Alsem is 10 to 14, with 55 individuals. Conversely, the age group with the lowest population is 70 to 74, with 8 individuals.
Age distribution
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 9 | 1.77% |
| 1 to 4 | 42 | 8.27% |
| 5 to 9 | 44 | 8.66% |
| 10 to 14 | 55 | 10.83% |
| 15 to 19 | 52 | 10.24% |
| 20 to 24 | 25 | 4.92% |
| 25 to 29 | 24 | 4.72% |
| 30 to 34 | 31 | 6.10% |
| 35 to 39 | 43 | 8.46% |
| 40 to 44 | 49 | 9.65% |
| 45 to 49 | 32 | 6.30% |
| 50 to 54 | 16 | 3.15% |
| 55 to 59 | 20 | 3.94% |
| 60 to 64 | 11 | 2.17% |
| 65 to 69 | 19 | 3.74% |
| 70 to 74 | 8 | 1.57% |
| 75 to 79 | 17 | 3.35% |
| 80 and over | 11 | 2.17% |
| Total | 508 | 100.00% |
| ||
Historical population
The population of Alsem grew from 483 in 1990 to 560 in 2020, an increase of 77 people over the course of 30 years. The latest census figures in 2020 denote a positive annualized growth rate of 2.07%, or an increase of 52 people, from the previous population of 508 in 2015.
Trends in population growth
| Census date | Population | Annualized Growth Rate |
|---|---|---|
| 483 | – | |
| 485 | 0.08% | |
| 505 | 0.87% | |
| 475 | -0.84% | |
| 545 | 5.13% | |
| 508 | -1.33% | |
| 560 | 2.07% |
Location
Alsem is situated at approximately 18.2977, 120.7078, in the island of Luzon. Elevation at these coordinates is estimated at 62.5 meters or 205.1 feet above mean sea level.
Adjacent barangays
Alsem 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.