Ilagan, Province of Isabela

Summary data
Typecity (component)
Island groupLuzon
RegionCagayan Valley (Region II)
ProvinceIsabela
Barangay count91
Postal code3330
Coastal/Landlockedcoastal
Marine waterbodiesPhilippine Sea
Philippine major island(s)Luzon
Area (2007)1,166.26 km2 (450.30 sq mi)
Population (2015)145,568
Density (2015)125 / km2 (323 / sq mi)
Coordinates17° 9' North, 121° 53' East (17.1442, 121.8889)
Estimated elevation above sea level52.9 meters (173.6 feet)

Ilagan is a coastal component city in the province of Isabela. It serves as the provincial capital.

The city has a land area of 1,166.26 square kilometers or 450.30 square miles which constitutes 9.39% of Isabela's total area. Its population as determined by the 2015 Census was 145,568. This represented 9.13% of the total population of Isabela province, or 4.22% of the overall population of the Cagayan Valley region. Based on these figures, the population density is computed at 125 inhabitants per square kilometer or 323 inhabitants per square mile.

Barangays

Ilagan has 91 barangays as shown in the following table.

Demographic profile of barangays
BarangayPopulation percentage (2015)Population (2015)Population (2010)Change (2010‑2015)Annual Population Growth Rate (2010‑2015)
Aggasian2.49%3,6293,4365.62%1.05%
Alibagu4.76%6,9286,5246.19%1.15%
Allinguigan 1st1.30%1,8961,7965.57%1.04%
Allinguigan 2nd2.00%2,9143,050-4.46%-0.86%
Allinguigan 3rd0.84%1,2291,1814.06%0.76%
Arusip0.63%91978616.92%3.02%
Baculod2.81%4,0904,348-5.93%-1.16%
Bagong Silang0.40%5785426.64%1.23%
Bagumbayan1.57%2,2862,2740.53%0.10%
Baligatan1.45%2,1042,0164.37%0.82%
Ballacong0.52%7647630.13%0.02%
Bangag0.84%1,2191,221-0.16%-0.03%
Batong‑Labang1.59%2,3142,2592.43%0.46%
Bigao1.09%1,5901,38714.64%2.63%
Cabannungan 1st0.52%7567490.93%0.18%
Cabannungan 2nd1.25%1,8221,48622.61%3.96%
Cabeseria 101.35%1,9601,75111.94%2.17%
Cabeseria 14 and 161.74%2,5302,3039.86%1.81%
Cabeseria 17 and 210.85%1,2351,1883.96%0.74%
Cabeseria 190.56%818826-0.97%-0.19%
Cabeseria 20.77%1,1251,1150.90%0.17%
Cabeseria 220.63%9148754.46%0.83%
Cabeseria 230.65%9438876.31%1.17%
Cabeseria 250.68%99578826.27%4.54%
Cabeseria 270.62%8978574.67%0.87%
Cabeseria 30.58%8517858.41%1.55%
Cabeseria 40.41%60454510.83%1.98%
Cabeseria 50.57%8328082.97%0.56%
Cabeseria 6 & 240.77%1,1261,166-3.43%-0.66%
Cabeseria 70.56%8108021.00%0.19%
Cabeseria 9 and 110.98%1,4311,464-2.25%-0.43%
Cadu0.39%562576-2.43%-0.47%
Calamagui 1st2.49%3,6193,4504.90%0.91%
Calamagui 2nd2.14%3,1092,9445.60%1.04%
Camunatan0.63%922927-0.54%-0.10%
Capellan2.02%2,9422,7716.17%1.15%
Capo0.68%99283618.66%3.31%
Carikkikan Norte0.31%4574247.78%1.44%
Carikkikan Sur0.12%1731701.76%0.33%
Centro Poblacion0.34%497663-25.04%-5.34%
Centro‑San Antonio2.85%4,1433,73910.81%1.97%
Fugu1.09%1,5821,5571.61%0.30%
Fuyo0.58%850929-8.50%-1.68%
Gayong‑Gayong Norte0.54%7927219.85%1.80%
Gayong‑Gayong Sur0.83%1,2041,00619.68%3.48%
Guinatan1.14%1,6541,6540.00%0.00%
Imelda Bliss Village4.21%6,1355,13019.59%3.47%
Lullutan1.61%2,3401,66540.54%6.69%
Malalam1.26%1,8391,6978.37%1.54%
Malasin0.86%1,2511,05818.24%3.24%
Manaring1.65%2,3991,86828.43%4.88%
Mangcuram0.67%97382018.66%3.31%
Marana I1.07%1,5511,40810.16%1.86%
Marana II0.40%5825711.93%0.36%
Marana III0.43%619650-4.77%-0.93%
Minabang1.03%1,5051,4037.27%1.35%
Morado0.67%97282917.25%3.08%
Naguilian Norte1.93%2,8082,6047.83%1.45%
Naguilian Sur0.85%1,2311,10311.60%2.11%
Namnama0.75%1,09594316.12%2.89%
Nanaguan0.33%477482-1.04%-0.20%
Osmeña2.30%3,3472,76221.18%3.73%
Paliueg1.00%1,4491,3805.00%0.93%
Pasa0.70%1,02184520.83%3.67%
Pilar0.56%8197943.15%0.59%
Quimalabasa0.25%36831516.83%3.01%
Rang‑ayan0.93%1,3531,2666.87%1.27%
Rugao0.83%1,2111,06713.50%2.44%
Salindingan0.90%1,3121,11917.25%3.08%
San Andres0.74%1,07296610.97%2.00%
San Felipe0.68%9969910.50%0.10%
San Ignacio2.01%2,9232,49617.11%3.05%
San Isidro0.97%1,4151,3127.85%1.45%
San Juan1.31%1,9061,66914.20%2.56%
San Lorenzo0.82%1,1871,04313.81%2.49%
San Pablo0.25%36232212.42%2.25%
San Rodrigo0.84%1,2211,10510.50%1.92%
San Vicente1.68%2,4392,509-2.79%-0.54%
Santa Barbara0.76%1,1021,357-18.79%-3.89%
Santa Catalina0.61%8918801.25%0.24%
Santa Isabel Norte1.58%2,2962,2034.22%0.79%
Santa Isabel Sur3.17%4,6124,3316.49%1.20%
Santa Maria0.85%1,2321,1596.30%1.17%
Santa Victoria1.07%1,5611,26523.40%4.08%
Santo Tomas0.61%8938841.02%0.19%
Siffu1.02%1,4821,31712.53%2.27%
Sindon Bayabo1.46%2,1322,0106.07%1.13%
Sindon Maride0.47%6886358.35%1.54%
Sipay0.44%64551724.76%4.30%
Tangcul0.79%1,1541,1203.04%0.57%
Villa Imelda0.75%1,09595914.18%2.56%
Ilagan Total145,568135,1747.69%1.42%

Economy

According to the Bureau of Local Government Finance, the annual regular revenue of Ilagan for the fiscal year of 2016 was 1,220,169,017.17.

details
Fiscal YearAnnual Regular IncomeChange
2009247,428,536.00
2010408,613,841.7765.14%
2011420,733,560.332.97%
2012317,491,073.04-24.54%
2013891,480,659.00180.79%
2014956,728,818.927.32%
20151,116,604,538.4916.71%
20161,220,169,017.179.27%

End notes:

  • Annual Regular Income = Locally Sourced Revenue + Internal Revenue Allotment (IRA) Current Year + Other Shares from National Tax Collection
  • Locally Sourced Revenue = Real Property Tax (General Fund) + Tax on Business + Other Taxes + Regulatory Fees + Service/User Charges + Receipts from Economic Enterprises

Demographics

Population by age group

According to the 2015 Census, the age group with the highest population in Ilagan is 5 to 9, with 14,538 individuals. Conversely, the age group with the lowest population is 80 and over, with 1,110 individuals.

details
Age groupPopulation (2015)
Under 12,792
1 to 411,607
5 to 914,538
10 to 1413,908
15 to 1913,896
20 to 2413,845
25 to 2911,890
30 to 3410,550
35 to 3910,358
40 to 449,367
45 to 498,342
50 to 547,230
55 to 595,921
60 to 644,415
65 to 692,726
70 to 741,760
75 to 791,313
80 and over1,110
Total145,568

Historical population

The population of Ilagan grew from 48,251 in 1960 to 145,568 in 2015, an increase of 97,317 people. The latest census figures in 2015 denote a positive growth rate of 1.42%, or an increase of 10,394 people, from the previous population of 135,174 in 2010.

details
Census datePopulationGrowth rate
48,251
62,1182.50%
70,0752.45%
79,3362.51%
99,1202.25%
106,9121.43%
119,9902.51%
131,2431.24%
135,1741.08%
145,5681.42%

Location

The city center of Ilagan is situated at approximately 17° 9' North, 121° 53' East, in the island of Luzon. Elevation at these coordinates is estimated at 52.9 meters or 173.6 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 Ilagan are Cauayan, Tuguegarao, Tabuk, Santiago, Candon, and Baguio. The nearest municipalities are Gamu, Naguilian, Tumauini, Quirino, Reina Mercedes, and Benito Soliven. Its distance from the national capital is 298.87 kilometers (185.71 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

  • Cauayan, Isabela, 26.63 kilometers (16.55 miles) to the South‑Southwest (S29°W)
  • Tuguegarao, Cagayan, 54.42 kilometers (33.82 miles) to the North‑Northwest (N18°W)
  • Tabuk, Kalinga, 55.92 kilometers (34.75 miles) to the West‑Northwest (N58°W)
  • Santiago, Isabela, 62.45 kilometers (38.80 miles) to the Southwest (S36°W)
  • Candon, Ilocos Sur, 153.44 kilometers (95.35 miles) to the West (N88°W)
  • Baguio, 160.14 kilometers (99.50 miles) to the West‑Southwest (S60°W)

Distance from Manila: 298.87 kilometers (185.71 miles) to the South‑Southwest (S19°W)

National rankings

  • Population (2015): 145,568, ranked 65 out of 1,634
  • Land area (2007): 450.30 square kilometers, ranked 10 out of 1,634
  • Population density (2015): 125 inhabitants per square kilometer, ranked 609 out of 1,634
  • Annual population growth rate (2010 to 2015): 1.42%, ranked 835 out of 1,634

Notes

  1. Unless otherwise specified, population count (excluding percentages) and land area figures are derived from the Philippine Statistics Authority.
  2. Data on annual regular income is from the Bureau of Local Government Finance, Department of Finance
  3. Postal code information is from the Philippine Postal Corporation.
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