Santiago, Province of Ilocos Sur

Summary data
Typemunicipality
Island groupLuzon
RegionIlocos Region (Region I)
ProvinceIlocos Sur
Barangay count24
Postal code2707
Coastal/Landlockedcoastal
Marine waterbodiesSouth China Sea
Philippine major island(s)Luzon
Area (2007)46.36 km2 (17.90 sq mi)
Population (2015)18,759
Density (2015)405 / km2 (1,048 / sq mi)
Coordinates17° 18' North, 120° 27' East (17.2940, 120.4453)
Estimated elevation above sea level13.7 meters (44.9 feet)

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

The municipality has a land area of 46.36 square kilometers or 17.90 square miles which constitutes 1.79% of Ilocos Sur's total area. Its population as determined by the 2015 Census was 18,759. This represented 2.72% of the total population of Ilocos Sur province, or 0.37% of the overall population of the Ilocos Region. Based on these figures, the population density is computed at 405 inhabitants per square kilometer or 1,048 inhabitants per square mile.

Barangays

Santiago has 24 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)
Al‑aludig4.65%8728285.31%0.99%
Ambucao9.11%1,7091,48515.08%2.71%
Baybayabas3.02%5665512.72%0.51%
Bigbiga3.49%65558511.97%2.18%
Bulbulala2.92%5485019.38%1.72%
Busel‑busel2.63%4934587.64%1.41%
Butol5.32%9981,000-0.20%-0.04%
Caburao7.31%1,3711,3322.93%0.55%
Dan‑ar10.32%1,9351,8623.92%0.73%
Gabao4.33%8137508.40%1.55%
Guinabang1.60%30026712.36%2.24%
Imus1.59%2992903.10%0.58%
Lang‑ayan1.99%3733448.43%1.55%
Mambug6.40%1,2001,1266.57%1.22%
Nalasin3.13%588590-0.34%-0.06%
Olo‑olo Norte5.02%9419123.18%0.60%
Olo‑olo Sur2.17%4083972.77%0.52%
Poblacion Norte2.14%402408-1.47%-0.28%
Poblacion Sur2.64%496539-7.98%-1.57%
Sabangan6.41%1,2031,1663.17%0.60%
Salincub4.47%8397797.70%1.42%
San Jose1.55%291309-5.83%-1.14%
San Roque4.47%839860-2.44%-0.47%
Ubbog3.31%6206190.16%0.03%
Santiago Total18,75917,9584.46%0.83%

Economy

According to the Bureau of Local Government Finance, the annual regular revenue of Santiago for the fiscal year of 2016 was 290,583,630.45.

details
Fiscal YearAnnual Regular IncomeChange
200939,022,147.01
201099,425,064.32154.79%
201194,864,212.60-4.59%
201291,645,967.26-3.39%
201394,876,936.383.53%
201446,190,317.53-51.32%
2015153,785,603.60232.94%
2016290,583,630.4588.95%

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 Santiago is 5 to 9, with 1,875 individuals. Conversely, the age group with the lowest population is 75 to 79, with 296 individuals.

details
Age groupPopulation (2015)
Under 1374
1 to 41,449
5 to 91,875
10 to 141,678
15 to 191,456
20 to 241,578
25 to 291,354
30 to 341,434
35 to 391,353
40 to 441,119
45 to 491,113
50 to 54963
55 to 59828
60 to 64670
65 to 69498
70 to 74373
75 to 79296
80 and over348
Total18,759

Historical population

The population of Santiago grew from 8,213 in 1960 to 18,759 in 2015, an increase of 10,546 people. The latest census figures in 2015 denote a positive growth rate of 0.83%, or an increase of 801 people, from the previous population of 17,958 in 2010.

details
Census datePopulationGrowth rate
8,213
10,2242.17%
11,2451.93%
11,8431.04%
14,4271.99%
14,8430.53%
15,8761.45%
16,8060.79%
17,9582.44%
18,7590.83%

Location

The municipal center of Santiago is situated at approximately 17° 18' North, 120° 27' East, in the island of Luzon. Elevation at these coordinates is estimated at 13.7 meters or 44.9 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 Santiago are Candon, Vigan, San Fernando, Batac, Baguio, and Laoag. The nearest municipalities are San Esteban, Banayoyo, Burgos, Santa Maria, Lidlidda, and Galimuyod. Its distance from the national capital is 304.58 kilometers (189.26 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

Distance from Manila: 304.58 kilometers (189.26 miles) to the South (S11°E)

National rankings

  • Population (2015): 18,759, ranked 1,279 out of 1,634
  • Land area (2007): 17.90 square kilometers, ranked 1,401 out of 1,634
  • Population density (2015): 405 inhabitants per square kilometer, ranked 479 out of 1,634
  • Annual population growth rate (2010 to 2015): 0.83%, ranked 1,197 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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