Isabela City
Province of Basilan

Summary data
Island groupMindanao
RegionZamboanga Peninsula (Region IX)
ProvinceBasilan
Barangay count45
Postal code7300
Coastal/Landlockedcoastal
Marine waterbodiesSulu Sea
Area (2007)223.73 km2
(86.38 sq. mi)
Population (2015)112,788
Density (2015)504 per km2
(1,306 per sq. mi)
Coordinates6° 42' North, 121° 58' East
(6.7055 ° N, 121.9726 ° E)
Estimated elevation
above sea level
15.7 meters
(51.6 feet)
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Isabela 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 which constitutes 6.94% of Basilan's total area. The 2015 Census records its population as 112,788 representing 2.98% of the total population of the Zamboanga Peninsula region. Based on such figures, the population density is computed at 504 inhabitants per square kilometer or 1,306 inhabitants per square mile.

Demographic profile of barangays

Isabela City has 45 barangays as shown in the following table.

BarangayPopulation
percentage

(2015)
Population
(2015)
Population
(2010)
Change
(2010-2015)

Annual
Population
Growth Rate
(2010-2015)
Aguada4.85%5,4695,1506.19%1.15%
Balatanay0.77%87353064.72%9.97%
Baluno2.27%2,5572,3299.79%1.79%
Begang2.54%2,8632,7294.91%0.92%
Binuangan1.56%1,7551,7052.93%0.55%
Busay1.42%1,6061,38715.79%2.83%
Cabunbata2.99%3,3763,05410.54%1.93%
Calvario2.03%2,2891,34869.81%10.61%
Carbon3.30%3,7202,57444.52%7.26%
Diki3.72%4,1993,25628.96%4.96%
Doña Ramona T. Alano0.80%907980-7.45%-1.46%
Isabela Eastside2.10%2,3702,967-20.12%-4.19%
Isabela Proper0.93%1,0541,0401.35%0.25%
Kapatagan Grande0.99%1,11887727.48%4.73%
Kapayawan0.85%9649056.52%1.21%
Kaumpurnah Zone I2.75%3,1073,167-1.89%-0.36%
Kaumpurnah Zone II3.33%3,7533,10021.06%3.71%
Kaumpurnah Zone III2.43%2,7362,23422.47%3.93%
Kumalarang1.13%1,27384750.30%8.07%
La Piedad1.83%2,0592,131-3.38%-0.65%
Lampinigan1.56%1,7581,32532.68%5.53%
Lanote3.20%3,6083,06817.60%3.14%
Lukbuton1.75%1,9781,53628.78%4.93%
Lumbang1.95%2,2001,74626.00%4.50%
Makiri0.60%67838576.10%11.38%
Maligue1.94%2,1921,92813.69%2.47%
Marang‑marang1.65%1,8631,46527.17%4.68%
Marketsite3.53%3,9813,57711.29%2.06%
Masula1.17%1,3221,430-7.55%-1.48%
Menzi3.29%3,7153,823-2.83%-0.54%
Panigayan2.40%2,7042,37413.90%2.51%
Panunsulan1.14%1,2831,305-1.69%-0.32%
Port Area1.17%1,3161,12516.98%3.03%
Riverside1.99%2,2481,91217.57%3.13%
San Rafael6.93%7,8134,46075.18%11.27%
Santa Barbara1.46%1,6471,20336.91%6.16%
Santa Cruz0.84%9511,139-16.51%-3.38%
Seaside0.40%449603-25.54%-5.46%
Small Kapatagan0.55%62251321.25%3.74%
Sumagdang5.79%6,5295,9639.49%1.74%
Sunrise Village2.12%2,3932,873-16.71%-3.42%
Tabiawan1.36%1,5351,5220.85%0.16%
Tabuk5.94%6,6965,34625.25%4.38%
Tampalan3.64%4,1013,8257.22%1.34%
Timpul1.03%1,1581,1015.18%0.97%
Isabela City Total112,78897,85715.26%2.74%
Historical population

The population of Isabela City grew from 59,482 in 1990 to 112,788 in 2015, an increase of 53,306 people. The latest census figures in 2015 denote a positive growth rate of 2.74%, or an increase of 14,931 people, from the previous population of 97,857 in 2010.

Census datePopulationGrowth rate
1960 Feb 15
1970 May 6
1975 May 1
1980 May 1
1990 May 159,482
1995 Sep 168,5572.70%
2000 May 173,0321.37%
2007 Aug 187,9852.60%
2010 May 197,8573.95%
2015 Aug 1112,7882.74%
Map

The city center of Isabela is situated at approximately 6° 42' North, 121° 58' East, which has an elevation 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, Zamboanga City, Pagadian, Tangub, Dipolog, and Cotabato City. The nearest municipalities are Lantawan, Maluso, Akbar, Tuburan, Tipo-Tipo, and Sumisip. Its distance from the national capital is 878.93 kilometers (546.14 miles). The following list delineates such distance measurements.

Nearest towns

  • Lantawan, Basilan, 16.39 kilometers (10.18 miles) to the West‑Southwest (S62°W)
  • Maluso, Basilan, 20.90 kilometers (12.99 miles) to the South‑Southwest (S32°W)
  • Akbar, Basilan, 23.94 kilometers (14.88 miles) to the East (S79°E)
  • Tuburan, Basilan, 26.69 kilometers (16.58 miles) to the East‑Southeast (S66°E)
  • Tipo-Tipo, Basilan, 28.06 kilometers (17.44 miles) to the Southeast (S36°E)
  • Sumisip, Basilan, 28.26 kilometers (17.56 miles) to the South (S1°W)

Nearest cities

Distance from Manila: 878.93 kilometers (546.14 miles) to the North (N7°W)

Notes

  1. Unless otherwise specified, population count (excluding percentages) and land area figures are derived from the Philippine Statistics Authority.
  2. Postal codes are from the Philippine Postal Corporation.
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