Casilagan, Municipality of Naguilian, Province of La Union
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | Ilocos Region (Region I) |
| Province | La Union |
| Municipality | Naguilian |
| Postal code | 2511 |
| Population (2020) | 2,192 |
| Philippine major island(s) | Luzon |
| Coordinates | 16.5452, 120.4146 (16° 33' North, 120° 25' East) |
| Estimated elevation above sea level | 36.3 meters (119.1 feet) |
Casilagan is a barangay in the municipality of Naguilian, in the province of La Union. Its population as determined by the 2020 Census was 2,192. This represented 4.20% of the total population of Naguilian.
Demographics
Households
The household population of Casilagan in the 2015 Census was 2,210 broken down into 479 households or an average of 4.61 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 1,615 | 267 | 6.05 | |
| 1,878 | 338 | 5.56 | |
| 1,999 | 367 | 5.45 | |
| 2,004 | 425 | 4.72 | |
| 1,896 | 407 | 4.66 | |
| 2,210 | 479 | 4.61 |
Population by age group
According to the 2015 Census, the age group with the highest population in Casilagan is 10 to 14, with 234 individuals. Conversely, the age group with the lowest population is 75 to 79, with 26 individuals.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 47 | 2.13% |
| 1 to 4 | 192 | 8.69% |
| 5 to 9 | 202 | 9.14% |
| 10 to 14 | 234 | 10.59% |
| 15 to 19 | 193 | 8.73% |
| 20 to 24 | 204 | 9.23% |
| 25 to 29 | 186 | 8.42% |
| 30 to 34 | 170 | 7.69% |
| 35 to 39 | 138 | 6.24% |
| 40 to 44 | 121 | 5.48% |
| 45 to 49 | 119 | 5.38% |
| 50 to 54 | 113 | 5.11% |
| 55 to 59 | 93 | 4.21% |
| 60 to 64 | 71 | 3.21% |
| 65 to 69 | 39 | 1.76% |
| 70 to 74 | 30 | 1.36% |
| 75 to 79 | 26 | 1.18% |
| 80 and over | 32 | 1.45% |
| Total | 2,210 | 100.00% |
| ||
Historical population
The population of Casilagan grew from 1,615 in 1990 to 2,192 in 2020, an increase of 577 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 0.17%, or a decrease of 18 people, from the previous population of 2,210 in 2015.
| Census date | Population | Growth rate |
|---|---|---|
| 1,615 | – | |
| 1,878 | 2.87% | |
| 1,999 | 1.35% | |
| 2,004 | 0.03% | |
| 1,896 | -2.00% | |
| 2,210 | 2.96% | |
| 2,192 | -0.17% |
Location
Casilagan is situated at approximately 16.5452, 120.4146, in the island of Luzon. Elevation at these coordinates is estimated at 36.3 meters or 119.1 feet above mean sea level.
Adjacent barangays
Casilagan 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.