Alilem, Province of Ilocos Sur
| Type | municipality |
|---|---|
| Island group | Luzon |
| Region | Ilocos Region (Region I) |
| Province | Ilocos Sur |
| Barangay count | 9 |
| Postal code | 2716 |
| Coastal/Landlocked | landlocked |
| Marine waterbodies | none (landlocked) |
| Philippine major island(s) | Luzon |
| Area (2013) | 119.33 km2 (46.07 sq mi) |
| Population (2020) | 7,361 |
| Density (2020) | 62 / km2 (160 / sq mi) |
| Coordinates | 16° 53' North, 120° 32' East (16.8870, 120.5299) |
| Estimated elevation above sea level | 60.8 meters (199.3 feet) |
Alilem is a landlocked municipality in the coastal province of Ilocos Sur.
The municipality has a land area of 119.33 square kilometers or 46.07 square miles which constitutes 4.60% of Ilocos Sur's total area. Its population as determined by the 2020 Census was 7,361. This represented 1.04% of the total population of Ilocos Sur province, or 0.14% of the overall population of the Ilocos Region. Based on these figures, the population density is computed at 62 inhabitants per square kilometer or 160 inhabitants per square mile.
Barangays
Alilem has 9 barangays as shown in the following table.
Demographic profile of barangays
| Barangay | Population percentage (2020) | Population (2020) | Population (2015) | Change (2015‑2020) | Annual Population Growth Rate (2015‑2020) |
|---|---|---|---|---|---|
| Alilem Daya | 22.88% | 1,684 | 1,575 | 6.92% | 1.42% |
| Amilongan | 8.48% | 624 | 520 | 20.00% | 3.91% |
| Anaao | 11.83% | 871 | 772 | 12.82% | 2.57% |
| Apang | 6.18% | 455 | 489 | -6.95% | -1.51% |
| Apaya | 8.12% | 598 | 531 | 12.62% | 2.53% |
| Batbato | 7.69% | 566 | 502 | 12.75% | 2.56% |
| Daddaay | 9.51% | 700 | 608 | 15.13% | 3.01% |
| Dalawa | 19.30% | 1,421 | 1,241 | 14.50% | 2.89% |
| Kiat | 6.00% | 442 | 457 | -3.28% | -0.70% |
| Alilem Total | 7,361 | 6,695 | 9.95% | 2.02% | |
Economy
The annual regular revenue of Alilem for the fiscal year of 2016 was ₱105,286,601.65.
details
| Fiscal Year | Annual Regular Income | Change |
|---|---|---|
| 2009 | 32,645,493.99 | – |
| 2010 | 59,533,891.42 | 82.36% |
| 2011 | 56,384,780.89 | -5.29% |
| 2012 | 51,632,610.61 | -8.43% |
| 2013 | 52,019,290.67 | 0.75% |
| 2014 | 41,793,300.64 | -19.66% |
| 2015 | 48,356,280.08 | 15.70% |
| 2016 | 105,286,601.65 | 117.73% |
End notes:
| ||
Demographics
Households
The household population of Alilem in the 2015 Census was 6,687 broken down into 1,476 households or an average of 4.53 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 5,314 | 964 | 5.51 | |
| 5,533 | 1,033 | 5.36 | |
| 6,353 | 1,168 | 5.44 | |
| 6,213 | 1,254 | 4.95 | |
| 6,640 | 1,358 | 4.89 | |
| 6,687 | 1,476 | 4.53 |
Population by age group
According to the 2015 Census, the age group with the highest population in Alilem is 5 to 9, with 682 individuals. Conversely, the age group with the lowest population is Under 1, with 108 individuals.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 108 | 1.61% |
| 1 to 4 | 517 | 7.72% |
| 5 to 9 | 682 | 10.19% |
| 10 to 14 | 677 | 10.11% |
| 15 to 19 | 625 | 9.34% |
| 20 to 24 | 495 | 7.39% |
| 25 to 29 | 483 | 7.21% |
| 30 to 34 | 472 | 7.05% |
| 35 to 39 | 459 | 6.86% |
| 40 to 44 | 410 | 6.12% |
| 45 to 49 | 369 | 5.51% |
| 50 to 54 | 316 | 4.72% |
| 55 to 59 | 291 | 4.35% |
| 60 to 64 | 222 | 3.32% |
| 65 to 69 | 172 | 2.57% |
| 70 to 74 | 138 | 2.06% |
| 75 to 79 | 111 | 1.66% |
| 80 and over | 148 | 2.21% |
| Total | 6,695 | 100.00% |
| ||
Historical population
The population of Alilem grew from 175 in 1903 to 7,361 in 2020, an increase of 7,186 people over the course of 117 years. The latest census figures in 2020 denote a positive growth rate of 2.02%, or an increase of 666 people, from the previous population of 6,695 in 2015.
details
| Census date | Population | Growth rate |
|---|---|---|
| 175 | – | |
| 1,621 | 15.09% | |
| 3,285 | 3.59% | |
| 3,049 | -0.76% | |
| 3,594 | 1.46% | |
| 4,145 | 1.41% | |
| 4,409 | 1.25% | |
| 4,599 | 0.85% | |
| 5,314 | 1.46% | |
| 5,533 | 0.76% | |
| 6,353 | 3.01% | |
| 6,217 | -0.30% | |
| 6,640 | 2.42% | |
| 6,695 | 0.16% | |
| 7,361 | 2.02% |
The total number of registered voters or electorate in Alilem for the year 2019 was 4,734, broken down into 2,447 males and 2,287 females.
Location
The municipal center of Alilem is situated at approximately 16° 53' North, 120° 32' East, in the island of Luzon. Elevation at these coordinates is estimated at 60.8 meters or 199.3 feet above mean sea level.
Distances
Based on the great-circle distance (the shortest distance between two points over the surface of the Earth), the cities closest to Alilem are Candon, Ilocos Sur, San Fernando, La Union, Baguio, Vigan, Ilocos Sur, Dagupan, Pangasinan, and Urdaneta, Pangasinan. The nearest municipalities are Sugpon, Ilocos Sur, Sudipen, La Union, Tagudin, Ilocos Sur, Suyo, Ilocos Sur, Bangar, La Union, and Santol, La Union. Its distance from the national capital is 258.65 kilometers (160.72 miles). The following list delineates such distance measurements.
great-circle distance
Nearest towns
- Sugpon, Ilocos Sur, 5.02 kilometers (3.12 miles) to the South‑Southwest (S18°W)
- Sudipen, La Union, 7.56 kilometers (4.70 miles) to the West‑Northwest (N75°W)
- Tagudin, Ilocos Sur, 10.46 kilometers (6.50 miles) to the West‑Northwest (N60°W)
- Suyo, Ilocos Sur, 10.91 kilometers (6.78 miles) to the North (N8°W)
- Bangar, La Union, 11.42 kilometers (7.10 miles) to the West (N86°W)
- Santol, La Union, 14.68 kilometers (9.12 miles) to the South‑Southwest (S31°W)
Nearest cities
- Candon, Ilocos Sur, 34.61 kilometers (21.51 miles) to the North‑Northwest (N15°W)
- San Fernando, La Union, 37.57 kilometers (23.34 miles) to the Southwest (S37°W)
- Baguio, 53.00 kilometers (32.93 miles) to the South (S7°E)
- Vigan, Ilocos Sur, 77.42 kilometers (48.11 miles) to the North‑Northwest (N11°W)
- Dagupan, Pangasinan, 95.77 kilometers (59.51 miles) to the South‑Southwest (S13°W)
- Urdaneta, Pangasinan, 100.97 kilometers (62.74 miles) to the South (S2°E)
Distance from Manila: 258.65 kilometers (160.72 miles) to the South (S11°E)
Notes
- Unless otherwise specified, population count (excluding percentages), household data, and land area figures are derived from the Philippine Statistics Authority.
- Data on registered voters is from the Commission on Elections.
- Data on annual regular income is from the Bureau of Local Government Finance, Department of Finance
- Postal code information is from the Philippine Postal Corporation.