Isabela City, Province of Basilan
| Type | city (component) |
|---|---|
| Island group | Mindanao |
| Region | Zamboanga Peninsula (Region IX) |
| Province | Basilan |
| Barangay count | 45 |
| Postal code | 7300 |
| Coastal/Landlocked | coastal |
| Marine waterbodies | Sulu Sea |
| Philippine major island(s) | Basilan |
| Area (2013) | 223.73 km2 (86.38 sq mi) |
| Population (2020) | 130,379 |
| Density (2020) | 583 / km2 (1,509 / sq mi) |
| Coordinates | 6° 42' North, 121° 58' East (6.7055, 121.9726) |
| Estimated elevation above sea level | 15.7 meters (51.6 feet) |
Isabela City is a coastal component city in the island province of Basilan. It serves as the provincial capital.
The city has a land area of 223.73 square kilometers or 86.38 square miles. Its population as determined by the 2020 Census was 130,379. This represented 3.36% of the total population of the Zamboanga Peninsula region. Based on these figures, the population density is computed at 583 inhabitants per square kilometer or 1,509 inhabitants per square mile.
Barangays
Isabela City has 45 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) |
|---|---|---|---|---|---|
| Aguada | 4.18% | 5,452 | 5,469 | -0.31% | -0.07% |
| Balatanay | 0.49% | 637 | 873 | -27.03% | -6.42% |
| Baluno | 2.51% | 3,275 | 2,557 | 28.08% | 5.35% |
| Begang | 2.57% | 3,347 | 2,863 | 16.91% | 3.34% |
| Binuangan | 2.01% | 2,615 | 1,755 | 49.00% | 8.76% |
| Busay | 1.65% | 2,146 | 1,606 | 33.62% | 6.29% |
| Cabunbata | 3.12% | 4,071 | 3,376 | 20.59% | 4.02% |
| Calvario | 1.03% | 1,344 | 2,289 | -41.28% | -10.60% |
| Carbon | 3.35% | 4,362 | 3,720 | 17.26% | 3.41% |
| Diki | 4.75% | 6,191 | 4,199 | 47.44% | 8.52% |
| Doña Ramona T. Alano | 0.82% | 1,067 | 907 | 17.64% | 3.48% |
| Isabela Eastside | 2.23% | 2,908 | 2,370 | 22.70% | 4.40% |
| Isabela Proper | 1.06% | 1,386 | 1,054 | 31.50% | 5.93% |
| Kapatagan Grande | 1.18% | 1,542 | 1,118 | 37.92% | 7.00% |
| Kapayawan | 0.69% | 897 | 964 | -6.95% | -1.50% |
| Kaumpurnah Zone I | 2.62% | 3,411 | 3,107 | 9.78% | 1.98% |
| Kaumpurnah Zone II | 2.98% | 3,888 | 3,753 | 3.60% | 0.75% |
| Kaumpurnah Zone III | 2.19% | 2,856 | 2,736 | 4.39% | 0.91% |
| Kumalarang | 0.99% | 1,293 | 1,273 | 1.57% | 0.33% |
| La Piedad | 1.76% | 2,292 | 2,059 | 11.32% | 2.28% |
| Lampinigan | 1.20% | 1,561 | 1,758 | -11.21% | -2.47% |
| Lanote | 4.40% | 5,737 | 3,608 | 59.01% | 10.25% |
| Lukbuton | 1.74% | 2,268 | 1,978 | 14.66% | 2.92% |
| Lumbang | 1.51% | 1,965 | 2,200 | -10.68% | -2.35% |
| Makiri | 0.47% | 609 | 678 | -10.18% | -2.23% |
| Maligue | 2.00% | 2,606 | 2,192 | 18.89% | 3.71% |
| Marang-marang | 1.09% | 1,424 | 1,863 | -23.56% | -5.50% |
| Marketsite | 3.21% | 4,184 | 3,981 | 5.10% | 1.05% |
| Masula | 1.43% | 1,861 | 1,322 | 40.77% | 7.46% |
| Menzi | 3.51% | 4,571 | 3,715 | 23.04% | 4.46% |
| Panigayan | 2.14% | 2,791 | 2,704 | 3.22% | 0.67% |
| Panunsulan | 1.06% | 1,384 | 1,283 | 7.87% | 1.61% |
| Port Area | 1.16% | 1,509 | 1,316 | 14.67% | 2.92% |
| Riverside | 1.44% | 1,883 | 2,248 | -16.24% | -3.66% |
| San Rafael | 6.07% | 7,917 | 7,813 | 1.33% | 0.28% |
| Santa Barbara | 1.85% | 2,407 | 1,647 | 46.14% | 8.31% |
| Santa Cruz | 0.70% | 916 | 951 | -3.68% | -0.79% |
| Seaside | 0.25% | 328 | 449 | -26.95% | -6.40% |
| Small Kapatagan | 0.50% | 649 | 622 | 4.34% | 0.90% |
| Sumagdang | 7.75% | 10,100 | 6,529 | 54.69% | 9.62% |
| Sunrise Village | 2.11% | 2,746 | 2,393 | 14.75% | 2.94% |
| Tabiawan | 1.66% | 2,158 | 1,535 | 40.59% | 7.43% |
| Tabuk | 5.38% | 7,008 | 6,696 | 4.66% | 0.96% |
| Tampalan | 3.97% | 5,175 | 4,101 | 26.19% | 5.02% |
| Timpul | 1.26% | 1,642 | 1,158 | 41.80% | 7.63% |
| Isabela City Total | 130,379 | 112,788 | 15.60% | 3.10% | |
Economy
The annual regular revenue of Isabela City for the fiscal year of 2016 was ₱464,519,622.35.
details
| Fiscal Year | Annual Regular Income | Change |
|---|---|---|
| 2009 | 299,615,179.79 | – |
| 2010 | 329,364,025.58 | 9.93% |
| 2011 | 353,167,040.10 | 7.23% |
| 2012 | 303,683,882.99 | -14.01% |
| 2013 | 330,105,216.34 | 8.70% |
| 2014 | 373,079,698.12 | 13.02% |
| 2015 | 423,018,197.14 | 13.39% |
| 2016 | 464,519,622.35 | 9.81% |
End notes:
| ||
Demographics
Households
The household population of Isabela City in the 2015 Census was 112,120 broken down into 22,916 households or an average of 4.89 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 59,320 | 11,026 | 5.38 | |
| 68,370 | 12,375 | 5.52 | |
| 72,876 | 13,753 | 5.30 | |
| 87,869 | 17,835 | 4.93 | |
| 97,690 | 20,294 | 4.81 | |
| 112,120 | 22,916 | 4.89 |
Population by age group
According to the 2015 Census, the age group with the highest population in Isabela City is 5 to 9, with 12,976 individuals. Conversely, the age group with the lowest population is 80 and over, with 510 individuals.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 2,365 | 2.10% |
| 1 to 4 | 11,322 | 10.04% |
| 5 to 9 | 12,976 | 11.50% |
| 10 to 14 | 12,548 | 11.13% |
| 15 to 19 | 12,891 | 11.43% |
| 20 to 24 | 11,410 | 10.12% |
| 25 to 29 | 9,394 | 8.33% |
| 30 to 34 | 7,529 | 6.68% |
| 35 to 39 | 6,898 | 6.12% |
| 40 to 44 | 5,899 | 5.23% |
| 45 to 49 | 5,307 | 4.71% |
| 50 to 54 | 4,256 | 3.77% |
| 55 to 59 | 3,388 | 3.00% |
| 60 to 64 | 2,632 | 2.33% |
| 65 to 69 | 1,821 | 1.61% |
| 70 to 74 | 1,016 | 0.90% |
| 75 to 79 | 626 | 0.56% |
| 80 and over | 510 | 0.45% |
| Total | 112,788 | 100.00% |
| ||
Historical population
The population of Isabela City grew from 4,480 in 1903 to 130,379 in 2020, an increase of 125,899 people over the course of 117 years. The latest census figures in 2020 denote a positive growth rate of 3.10%, or an increase of 17,591 people, from the previous population of 112,788 in 2015.
details
| Census date | Population | Growth rate |
|---|---|---|
| 4,480 | – | |
| 23,089 | 10.91% | |
| 57,561 | 4.67% | |
| 110,297 | 6.90% | |
| 32,609 | -10.16% | |
| 34,878 | 0.66% | |
| 48,092 | 6.66% | |
| 49,891 | 0.74% | |
| 59,482 | 1.77% | |
| 68,557 | 2.70% | |
| 73,032 | 1.37% | |
| 87,985 | 2.60% | |
| 97,857 | 3.95% | |
| 112,788 | 2.74% | |
| 130,379 | 3.10% |
The total number of registered voters or electorate in Isabela City for the year 2019 was 71,381, broken down into 34,899 males and 36,482 females.
Location
The city center of Isabela is situated at approximately 6° 42' North, 121° 58' East, in the island of Basilan. Elevation at these coordinates is estimated at 15.7 meters or 51.6 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 Isabela City are Lamitan, Basilan, Zamboanga City, Pagadian, Zamboanga del Sur, Tangub, Misamis Occidental, Dipolog, Zamboanga del Norte, and Cotabato City. The nearest municipalities are Lantawan, Basilan, Maluso, Basilan, Akbar, Basilan, Tuburan, Basilan, Ungkaya Pukan, Basilan, and Tipo-Tipo, Basilan. Its distance from the national capital is 878.95 kilometers (546.16 miles). The following list delineates such distance measurements.
great-circle distance
Nearest towns
- Lantawan, Basilan, 16.24 kilometers (10.09 miles) to the West‑Southwest (S62°W)
- Maluso, Basilan, 20.79 kilometers (12.92 miles) to the South‑Southwest (S32°W)
- Akbar, Basilan, 25.18 kilometers (15.65 miles) to the East (S80°E)
- Tuburan, Basilan, 26.80 kilometers (16.65 miles) to the East‑Southeast (S66°E)
- Ungkaya Pukan, Basilan, 28.01 kilometers (17.41 miles) to the South‑Southeast (S33°E)
- Tipo-Tipo, Basilan, 28.11 kilometers (17.47 miles) to the Southeast (S36°E)
Nearest cities
- Lamitan, Basilan, 19.86 kilometers (12.34 miles) to the East‑Southeast (S74°E)
- Zamboanga City, 24.93 kilometers (15.49 miles) to the North‑Northeast (N28°E)
- Pagadian, Zamboanga del Sur, 203.76 kilometers (126.61 miles) to the Northeast (N52°E)
- Tangub, Misamis Occidental, 247.15 kilometers (153.57 miles) to the Northeast (N52°E)
- Dipolog, Zamboanga del Norte, 257.12 kilometers (159.77 miles) to the Northeast (N36°E)
- Cotabato City, 257.82 kilometers (160.20 miles) to the East‑Northeast (N77°E)
Distance from Manila: 878.95 kilometers (546.16 miles) to the North (N7°W)
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.