Cagayan Valley (Region II)

Summary data
Map of the Philippines highlighting Cagayan Valley
Typeregion
Island groupLuzon
Provinces5
Cities4
Municipalities89
Barangays2,311
Coastal/Landlockedcoastal
Marine waterbodiesPhilippine Sea, South China Sea, Luzon Strait
Area (2013)298.37 km2 (11520.08 sq mi)
Population (2020)3,685,744
Density (2020)124 / km2 (320 / sq mi)

Cagayan Valley, officially designated as Region II, is an administrative region in the Philippines occupying the northeastern section of Luzon. It covers 5 provinces, namely, Batanes, Cagayan, Isabela, Nueva Vizcaya, and Quirino. The regional center is the City of Tuguegarao.

Its population as determined by the 2020 Census was 3,685,744. This represented 5.93% of the overall population of the Luzon island group, or 3.38% of the entire population of the Philippines. Based on these figures, the population density is computed at 124 inhabitants per square kilometer or 320 inhabitants per square mile.

Map

Cagayan Valley is bordered, clockwise from the North, by the Luzon Strait (Bashi Channel), Philippine Sea, Central Luzon, Ilocos Region, and the Cordillera Administrative Region.

details
Map of Cagayan ValleyMap of Cagayan Valley highlighting its regional center, component provinces and their capitals, and nearby major citiesBatanesCagayanIsabelaNueva VizcayaQuirinoTuguegarao, the regional center

Local government units

Cagayan Valley has 5 provinces, 89 municipalities, and 4 cities. The total number of barangays in the region is 2,311.

details
Local government units of Cagayan Valley
NameTypePopulation (2020)Population (2015)Annual Population Growth Rate (2015‑2020)Area (2013), in km2Density (2020), per km2City countMun countBrgy count
Batanesprovince18,83117,2461.87%203.22930629
Cagayanprovince1,268,6031,199,3201.19%9,398.07135128820
Isabelaprovince1,697,0501,593,5661.33%13,102.051303341,055
Nueva Vizcayaprovince497,432452,2872.02%4,813.88103015275
Quirinoprovince203,828188,9911.60%2,319.668806132
Cagayan Valley Total3,685,7443,451,4101.39%29,836.881244892,311

Demographics

Population by age group

According to the 2015 Census, the age group with the highest population in Cagayan Valley is 5 to 9, with 358,204 individuals. Conversely, the age group with the lowest population is 80 and over, with 32,097 individuals.

Age distribution

Population of Cagayan Valley by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 169,7462.02%
1 to 4292,9638.49%
5 to 9358,20410.38%
10 to 14337,9679.79%
15 to 19332,2949.63%
20 to 24318,6649.23%
25 to 29279,4928.10%
30 to 34247,4747.17%
35 to 39233,3946.76%
40 to 44205,0565.94%
45 to 49187,7655.44%
50 to 54166,4344.82%
55 to 59138,2794.01%
60 to 64104,9983.04%
65 to 6969,5522.02%
70 to 7443,0421.25%
75 to 7933,9890.98%
80 and over32,0970.93%
Total3,451,410100.00%
  • Youth Dependency Ratio: 47.83
  • Old Age Dependency Ratio: 8.07
  • Total Dependency Ratio: 55.9
  • Median Age: 25.28

Historical population

The population of Cagayan Valley grew from 295,211 in 1903 to 3,685,744 in 2020, an increase of 3,390,533 people over the course of 117 years. The latest census figures in 2020 denote a positive annualized growth rate of 1.39%, or an increase of 234,334 people, from the previous population of 3,451,410 in 2015.

Trends in population growth

Population of Cagayan Valley (1903‑2020)
Census datePopulationAnnualized Growth Rate
295,211–
348,3321.05%
600,1512.76%
669,0061.12%
1,035,7503.92%
1,462,7233.43%
1,665,2452.64%
1,919,0912.88%
2,340,5452.01%
2,536,0351.51%
2,813,1592.25%
3,051,4871.13%
3,229,1632.08%
3,451,4101.28%
3,685,7441.39%

The total number of registered voters or electorate in Cagayan Valley for the year 2019 was 2,194,418.

Notes

  1. Unless otherwise specified, population count (excluding percentages) and land area figures are derived from the Philippine Statistics Authority.
  2. Data on registered voters is from the Commission on Elections.
  3. Maps utilize OpenStreetMap data available under the Open Data Commons Open Database License.
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