Isabela

Summary data
Map of the Philippines highlighting Isabela
Island groupLuzon
RegionCagayan Valley (Region II)
CapitalIlagan
Total local government units
Cities3
Municipalities35
Barangays1,055
Coastal/Landlockedcoastal
Marine waterbodiesPhilippine Sea
Area (2007)12,414.93 km2
(4,793.43 sq. mi)
Population (2015)1,593,566
Density (2015)128 per km2
(332 per sq. mi)
(Jump to Map)

Isabela is a province in the Philippines situated in the Cagayan Valley region occupying the northeastern section of Luzon. Its capital is the City of Ilagan.

The province has a land area of 12,414.93 square kilometers or 4,793.43 square miles. The 2015 Census records its population as 1,593,566 representing 46.17% of the total population of the Cagayan Valley region, 2.77% of the overall population of the Luzon island group, or 1.58% of the entire population of the Philippines. Based on such figures, the population density is computed at 128 inhabitants per square kilometer or 332 inhabitants per square mile.

Map

Isabela is bordered, clockwise from the North, by Cagayan, Philippine Sea, Aurora, Quirino, Nueva Vizcaya, and Ifugao, Mountain Province, Kalinga.

Local government units

Isabela has 35 municipalities and 3 cities. The total number of barangays in the province is 1,055.

NameType
Population and
Population
percentage

(2015)
Population
(2010)
Annual
Population
Growth Rate
(2010-2015)
Area
(2007)
Density
(2015)
Brgy
count
Aliciamun71,504
(4.49%)
64,6871.93%154.10 km2
(59.50 sq mi)
464 per km2
(1,202 per sq mi)
34
Angadananmun43,061
(2.70%)
40,1431.34%204.40 km2
(78.92 sq mi)
211 per km2
(546 per sq mi)
59
Auroramun35,017
(2.20%)
33,0451.11%115.56 km2
(44.62 sq mi)
303 per km2
(785 per sq mi)
33
Benito Solivenmun29,624
(1.86%)
27,3371.54%184.40 km2
(71.20 sq mi)
161 per km2
(416 per sq mi)
29
Burgosmun23,784
(1.49%)
22,5211.04%73.10 km2
(28.22 sq mi)
325 per km2
(843 per sq mi)
14
Cabaganmun50,174
(3.15%)
45,7321.78%430.40 km2
(166.18 sq mi)
117 per km2
(302 per sq mi)
26
Cabatuanmun39,413
(2.47%)
37,2991.06%72.00 km2
(27.80 sq mi)
547 per km2
(1,418 per sq mi)
22
Cauayancity (CC)129,523
(8.13%)
122,3351.09%336.40 km2
(129.88 sq mi)
385 per km2
(997 per sq mi)
65
Cordonmun42,926
(2.69%)
40,8770.94%144.00 km2
(55.60 sq mi)
298 per km2
(772 per sq mi)
26
Delfin Albanomun26,614
(1.67%)
25,4220.88%189.00 km2
(72.97 sq mi)
141 per km2
(365 per sq mi)
29
Dinapiguemun5,005
(0.31%)
5,484-1.73%574.40 km2
(221.78 sq mi)
9 per km2
(23 per sq mi)
6
Divilacanmun5,687
(0.36%)
5,0342.35%889.49 km2
(343.43 sq mi)
6 per km2
(17 per sq mi)
12
Echaguemun79,094
(4.96%)
74,6801.10%680.80 km2
(262.86 sq mi)
116 per km2
(301 per sq mi)
64
Gamumun29,904
(1.88%)
28,6570.81%129.40 km2
(49.96 sq mi)
231 per km2
(599 per sq mi)
16
Ilagancity (CC), capital145,568
(9.13%)
135,1741.42%1,166.26 km2
(450.30 sq mi)
125 per km2
(323 per sq mi)
91
Jonesmun45,666
(2.87%)
44,2180.62%670.14 km2
(258.74 sq mi)
68 per km2
(176 per sq mi)
42
Lunamun19,326
(1.21%)
18,0911.27%45.70 km2
(17.64 sq mi)
423 per km2
(1,096 per sq mi)
19
Maconaconmun4,253
(0.27%)
3,6153.14%538.66 km2
(207.98 sq mi)
8 per km2
(20 per sq mi)
10
Malligmun30,459
(1.91%)
28,3451.38%133.40 km2
(51.51 sq mi)
228 per km2
(591 per sq mi)
18
Naguilianmun31,902
(2.00%)
29,4911.51%169.81 km2
(65.56 sq mi)
188 per km2
(487 per sq mi)
25
Palananmun17,260
(1.08%)
16,0941.34%880.24 km2
(339.86 sq mi)
20 per km2
(51 per sq mi)
17
Quezonmun25,860
(1.62%)
24,5221.02%189.90 km2
(73.32 sq mi)
136 per km2
(353 per sq mi)
15
Quirinomun24,501
(1.54%)
22,2851.82%126.20 km2
(48.73 sq mi)
194 per km2
(503 per sq mi)
21
Ramonmun52,707
(3.31%)
49,8121.08%135.17 km2
(52.19 sq mi)
390 per km2
(1,010 per sq mi)
19
Reina Mercedesmun26,998
(1.69%)
23,4972.68%57.14 km2
(22.06 sq mi)
472 per km2
(1,224 per sq mi)
20
Roxasmun61,773
(3.88%)
57,6991.31%184.80 km2
(71.35 sq mi)
334 per km2
(866 per sq mi)
26
San Agustinmun22,880
(1.44%)
21,7970.93%278.40 km2
(107.49 sq mi)
82 per km2
(213 per sq mi)
23
San Guillermomun20,200
(1.27%)
18,4231.77%325.49 km2
(125.67 sq mi)
62 per km2
(161 per sq mi)
26
San Isidromun24,861
(1.56%)
22,7581.70%71.90 km2
(27.76 sq mi)
346 per km2
(896 per sq mi)
13
San Manuelmun31,896
(2.00%)
30,4070.91%112.77 km2
(43.54 sq mi)
283 per km2
(733 per sq mi)
19
San Marianomun55,370
(3.47%)
51,4381.41%1,469.50 km2
(567.38 sq mi)
38 per km2
(98 per sq mi)
36
San Mateomun64,505
(4.05%)
60,7921.14%120.60 km2
(46.56 sq mi)
535 per km2
(1,385 per sq mi)
33
San Pablomun25,384
(1.59%)
22,0402.73%637.90 km2
(246.29 sq mi)
40 per km2
(103 per sq mi)
17
Santa Mariamun25,382
(1.59%)
22,9391.95%140.00 km2
(54.05 sq mi)
181 per km2
(470 per sq mi)
20
Santiagocity (ICC)134,830
(8.46%)
132,8040.29%255.50 km2
(98.65 sq mi)
528 per km2
(1,367 per sq mi)
37
Santo Tomasmun23,005
(1.44%)
21,6881.13%60.70 km2
(23.44 sq mi)
379 per km2
(981 per sq mi)
27
Tumauinimun67,650
(4.25%)
58,4632.82%467.30 km2
(180.43 sq mi)
145 per km2
(375 per sq mi)
46
Isabela Total1,593,5661,489,6451.29%12,414.93 km2
(4,793.43 sq mi)
128 per km2
(332 per sq mi)
1,055
Historical population

The population of Isabela grew from 442,062 in 1960 to 1,593,566 in 2015, an increase of 1,151,504 people. The latest census figures in 2015 denote a positive growth rate of 1.29%, or an increase of 103,921 people, from the previous population of 1,489,645 in 2010.

Census datePopulationGrowth rate
1903 Mar 276,431
1918 Dec 31112,9602.50%
1939 Jan 1219,8643.39%
1948 Oct 1264,4951.91%
1960 Feb 15442,0624.62%
1970 May 6648,1233.81%
1975 May 1730,3862.43%
1980 May 1870,6043.57%
1990 May 11,080,3412.18%
1995 Sep 11,160,7211.35%
2000 May 11,287,5752.25%
2007 Aug 11,401,4951.18%
2010 May 11,489,6452.25%
2015 Aug 11,593,5661.29%

Notes

  1. Unless otherwise specified, population count (excluding percentages) and land area figures are derived from the Philippine Statistics Authority.
  2. Maps utilize OpenStreetMap data available under the Open Data Commons Open Database License.
(Back to top)