Narvacan, Province of Ilocos Sur

Summary data
Typemunicipality
Island groupLuzon
RegionIlocos Region (Region I)
ProvinceIlocos Sur
Barangay count34
Postal code2704
Coastal/Landlockedcoastal
Marine waterbodiesSouth China Sea
Philippine major island(s)Luzon
Area (2013)122.21 km2 (47.19 sq mi)
Population (2020)46,234
Density (2020)378 / km2 (980 / sq mi)
Coordinates17° 25' North, 120° 29' East (17.4194, 120.4769)
Estimated elevation above sea level7.9 meters (26.0 feet)

Narvacan is a coastal municipality in the province of Ilocos Sur.

The municipality has a land area of 122.21 square kilometers or 47.19 square miles which constitutes 4.71% of Ilocos Sur's total area. Its population as determined by the 2020 Census was 46,234. This represented 6.55% of the total population of Ilocos Sur province, or 0.87% of the overall population of the Ilocos Region. Based on these figures, the population density is computed at 378 inhabitants per square kilometer or 980 inhabitants per square mile.

Barangays

Narvacan has 34 barangays as shown in the following table.

Demographic profile of barangays
Local government units of Narvacan
BarangayPopulation percentage (2020)Population (2020)Population (2015)Change (2015‑2020)Annual Population Growth Rate (2015‑2020)
Abuor2.49%1,1501,1470.26%0.05%
Ambulogan3.30%1,5251,4078.39%1.71%
Aquib2.07%9559371.92%0.40%
Banglayan2.48%1,1461,1202.32%0.48%
Bantay Abot1.92%8868188.31%1.70%
Bulanos2.32%1,07493714.62%2.91%
Cadacad1.62%7496829.82%1.99%
Cagayungan2.55%1,1781,198-1.67%-0.35%
Camarao2.91%1,3461,3211.89%0.40%
Casilagan1.67%77164719.17%3.76%
Codoog2.01%929952-2.42%-0.51%
Dasay2.77%1,2811,2542.15%0.45%
Dinalaoan2.81%1,3001,10317.86%3.52%
Estancia0.59%27524412.70%2.55%
Lanipao1.46%6776474.64%0.96%
Lungog4.79%2,2132,1522.83%0.59%
Margaay5.64%2,6072,22717.06%3.37%
Marozo3.09%1,4271,3049.43%1.92%
Naguneg4.46%2,0621,9475.91%1.22%
Orence4.26%1,9691,8764.96%1.02%
Pantoc2.44%1,1271,0784.55%0.94%
Paratong3.70%1,7091,6126.02%1.24%
Parparia2.81%1,3011,2414.83%1.00%
Quinarayan5.90%2,7302,739-0.33%-0.07%
Rivadavia1.54%712747-4.69%-1.00%
San Antonio4.18%1,9341,8663.64%0.76%
San Jose2.97%1,3751,393-1.29%-0.27%
San Pablo2.47%1,1441,228-6.84%-1.48%
San Pedro4.36%2,0151,9473.49%0.73%
Santa Lucia3.29%1,5211,574-3.37%-0.72%
Sarmingan1.38%64052023.08%4.47%
Sucoc3.37%1,5591,5172.77%0.58%
Sulvec4.92%2,2772,00513.57%2.71%
Turod1.45%6706198.24%1.68%
Narvacan Total46,23444,0065.06%1.05%

Economy

The annual regular revenue of Narvacan for the fiscal year of 2016 was 427,749,398.10.

details
Annual regular income of Narvacan (2009‑2016)
Fiscal YearAnnual Regular IncomeChange
2009
2010137,841,232.38
2011173,637,133.5925.97%
2012180,131,332.673.74%
2013165,067,064.12-8.36%
2014108,868,823.24-34.05%
2015114,441,070.125.12%
2016427,749,398.10273.77%

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 Narvacan in the 2015 Census was 43,959 broken down into 9,856 households or an average of 4.46 members per household.

details
Number of households in Narvacan (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
35,0766,8625.11
35,4627,3384.83
38,4167,8034.92
41,4658,9104.65
42,7879,4324.54
43,9599,8564.46

Population by age group

According to the 2015 Census, the age group with the highest population in Narvacan is 5 to 9, with 4,201 individuals. Conversely, the age group with the lowest population is 75 to 79, with 692 individuals.

details
Population of Narvacan by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 17931.80%
1 to 43,2157.31%
5 to 94,2019.55%
10 to 144,1609.45%
15 to 193,7548.53%
20 to 243,8548.76%
25 to 293,5398.04%
30 to 343,4307.79%
35 to 392,9506.70%
40 to 442,4745.62%
45 to 492,4735.62%
50 to 542,2705.16%
55 to 591,9104.34%
60 to 641,6123.66%
65 to 691,1462.60%
70 to 747941.80%
75 to 796921.57%
80 and over7391.68%
Total44,006100.00%
  • Youth Dependency Ratio: 43.76
  • Old Age Dependency Ratio: 11.93
  • Total Dependency Ratio: 55.69
  • Median Age: 27.86

Historical population

The population of Narvacan grew from 19,575 in 1903 to 46,234 in 2020, an increase of 26,659 people over the course of 117 years. The latest census figures in 2020 denote a positive growth rate of 1.05%, or an increase of 2,228 people, from the previous population of 44,006 in 2015.

details
Population of Narvacan (1903‑2020)
Census datePopulationGrowth rate
19,575
23,0711.04%
22,769-0.07%
22,237-0.24%
26,8721.68%
26,9620.03%
28,5161.13%
30,6821.47%
35,1531.37%
35,4890.18%
38,4351.72%
41,5781.09%
42,8031.06%
44,0060.53%
46,2341.05%

The total number of registered voters or electorate in Narvacan for the year 2019 was 29,096, broken down into 14,434 males and 14,662 females.

Location

The municipal center of Narvacan is situated at approximately 17° 25' North, 120° 29' East, in the island of Luzon. Elevation at these coordinates is estimated at 7.9 meters or 26.0 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 Narvacan are Vigan, Ilocos Sur, Candon, Ilocos Sur, Batac, Ilocos Norte, Laoag, Ilocos Norte, San Fernando, La Union, and Tabuk, Kalinga. The nearest municipalities are Santa Maria, Ilocos Sur, Nagbukel, Ilocos Sur, Santa, Ilocos Sur, Burgos, Ilocos Sur, San Esteban, Ilocos Sur, and Pilar, Abra. Its distance from the national capital is 317.63 kilometers (197.36 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

Distance from Manila: 317.63 kilometers (197.36 miles) to the South (S10°E)

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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