Naguilian, Province of Isabela

Summary data
Typemunicipality
Island groupLuzon
RegionCagayan Valley (Region II)
ProvinceIsabela
Barangay count25
Postal code3302
Coastal/Landlockedlandlocked
Marine waterbodiesnone (landlocked)
Philippine major island(s)Luzon
Area (2013)169.81 km2 (65.56 sq mi)
Population (2020)33,788
Density (2020)199 / km2 (515 / sq mi)
Coordinates17° 1' North, 121° 50' East (17.0231, 121.8350)
Estimated elevation above sea level49.4 meters (162.0 feet)

Naguilian is a landlocked municipality in the coastal province of Isabela.

The municipality has a land area of 169.81 square kilometers or 65.56 square miles which constitutes 1.30% of Isabela's total area. Its population as determined by the 2020 Census was 33,788. This represented 1.99% of the total population of Isabela province, or 0.92% of the overall population of the Cagayan Valley region. Based on these figures, the population density is computed at 199 inhabitants per square kilometer or 515 inhabitants per square mile.

Barangays

Naguilian has 25 barangays as shown in the following table.

Demographic profile of barangays
Local government units of Naguilian
BarangayPopulation percentage (2020)Population (2020)Population (2015)Change (2015‑2020)Annual Population Growth Rate (2015‑2020)
Aguinaldo1.20%40434317.78%3.51%
Bagong Sikat2.50%84475212.23%2.46%
Burgos5.67%1,9151,984-3.48%-0.74%
Cabaruan4.79%1,6171,5395.07%1.05%
Flores3.08%1,04291214.25%2.84%
La Union2.20%745785-5.10%-1.09%
Magsaysay9.15%3,0902,8468.57%1.75%
Manaring0.97%32928913.84%2.77%
Mansibang2.31%78269712.20%2.45%
Minallo8.62%2,9132,7426.24%1.28%
Minanga4.00%1,3531,487-9.01%-1.97%
Palattao7.75%2,6202,4735.94%1.22%
Quezon5.13%1,7351,56710.72%2.17%
Quinalabasa1.80%609613-0.65%-0.14%
Quirino7.16%2,4202,2597.13%1.46%
Rangayan2.30%7777503.60%0.75%
Rizal1.35%4564218.31%1.70%
Roxas6.49%2,1941,92813.80%2.76%
San Manuel7.67%2,5902,30012.61%2.53%
Santa Victoria1.67%5635502.36%0.49%
Santo Tomas2.38%80470114.69%2.93%
Sunlife1.78%6035784.33%0.90%
Surcoc4.51%1,5231,542-1.23%-0.26%
Tomines0.95%322323-0.31%-0.07%
Villa Paz4.55%1,5381,5211.12%0.23%
Naguilian Total33,78831,9025.91%1.22%

Economy

The annual regular revenue of Naguilian for the fiscal year of 2016 was 91,702,395.27.

details
Annual regular income of Naguilian (2009‑2016)
Fiscal YearAnnual Regular IncomeChange
200950,409,699.18
201053,046,876.755.23%
201158,110,520.249.55%
201242,651,473.62-26.60%
201363,856,346.9149.72%
201472,966,006.0114.27%
201582,735,515.6213.39%
201691,702,395.2710.84%

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

Households

The household population of Naguilian in the 2015 Census was 31,892 broken down into 7,413 households or an average of 4.30 members per household.

details
Number of households in Naguilian (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
24,0634,5325.31
24,2344,7335.12
26,2685,2105.04
27,9776,2164.50
29,4906,7144.39
31,8927,4134.30

Population by age group

According to the 2015 Census, the age group with the highest population in Naguilian is 5 to 9, with 3,192 individuals. Conversely, the age group with the lowest population is 80 and over, with 315 individuals.

details
Population of Naguilian by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 15871.84%
1 to 42,7078.49%
5 to 93,19210.01%
10 to 143,0439.54%
15 to 192,8698.99%
20 to 242,8989.08%
25 to 292,6378.27%
30 to 342,1806.83%
35 to 392,1886.86%
40 to 441,9326.06%
45 to 491,8945.94%
50 to 541,6465.16%
55 to 591,2743.99%
60 to 641,0003.13%
65 to 697412.32%
70 to 744361.37%
75 to 793631.14%
80 and over3150.99%
Total31,902100.00%
  • Youth Dependency Ratio: 46.44
  • Old Age Dependency Ratio: 9.04
  • Total Dependency Ratio: 55.48
  • Median Age: 26.24

Historical population

The population of Naguilian grew from 3,502 in 1903 to 33,788 in 2020, an increase of 30,286 people over the course of 117 years. The latest census figures in 2020 denote a positive growth rate of 1.22%, or an increase of 1,886 people, from the previous population of 31,902 in 2015.

details
Population of Naguilian (1903‑2020)
Census datePopulationGrowth rate
3,502
4,5161.62%
6,8712.12%
7,3590.71%
13,4545.45%
18,4253.12%
17,897-0.58%
20,1222.37%
24,1311.83%
24,2680.11%
26,2851.73%
27,9770.86%
29,4911.94%
31,9021.51%
33,7881.22%

The total number of registered voters or electorate in Naguilian for the year 2019 was 20,979, broken down into 10,439 males and 10,540 females.

Location

The municipal center of Naguilian is situated at approximately 17° 1' North, 121° 50' East, in the island of Luzon. Elevation at these coordinates is estimated at 49.4 meters or 162.0 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 Naguilian are Cauayan, Isabela, Ilagan, Isabela, Santiago, Isabela, Tabuk, Kalinga, Tuguegarao, Cagayan, and Baguio. The nearest municipalities are Gamu, Isabela, Reina Mercedes, Isabela, Luna, Isabela, Benito Soliven, Isabela, Burgos, Isabela, and Quirino, Isabela. Its distance from the national capital is 284.33 kilometers (176.68 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

  • Cauayan, Isabela, 12.23 kilometers (7.60 miles) to the Southwest (S36°W)
  • Ilagan, Isabela, 14.58 kilometers (9.06 miles) to the North‑Northeast (N23°E)
  • Santiago, Isabela, 48.30 kilometers (30.01 miles) to the Southwest (S40°W)
  • Tabuk, Kalinga, 63.32 kilometers (39.34 miles) to the Northwest (N38°W)
  • Tuguegarao, Cagayan, 66.13 kilometers (41.09 miles) to the North (N9°W)
  • Baguio, 148.69 kilometers (92.39 miles) to the West‑Southwest (S63°W)

Distance from Manila: 284.33 kilometers (176.68 miles) to the South‑Southwest (S19°W)

Notes

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