Santa Maria, Province of Ilocos Sur

Summary data
Typemunicipality
Island groupLuzon
RegionIlocos Region (Region I)
ProvinceIlocos Sur
Barangay count33
Postal code2705
Coastal/Landlockedcoastal
Marine waterbodiesSouth China Sea
Philippine major island(s)Luzon
Area (2013)63.31 km2 (24.44 sq mi)
Population (2020)30,006
Density (2020)474 / km2 (1,228 / sq mi)
Coordinates17° 22' North, 120° 29' East (17.3676, 120.4807)
Estimated elevation above sea level8.7 meters (28.6 feet)

Santa Maria is a coastal municipality in the province of Ilocos Sur.

The municipality has a land area of 63.31 square kilometers or 24.44 square miles which constitutes 2.44% of Ilocos Sur's total area. Its population as determined by the 2020 Census was 30,006. This represented 4.25% of the total population of Ilocos Sur province, or 0.57% of the overall population of the Ilocos Region. Based on these figures, the population density is computed at 474 inhabitants per square kilometer or 1,228 inhabitants per square mile.

Barangays

Santa Maria has 33 barangays as shown in the following table.

Demographic profile of barangays
Local government units of Santa Maria
BarangayPopulation percentage (2020)Population (2020)Population (2015)Change (2015‑2020)Annual Population Growth Rate (2015‑2020)
Ag-agrao3.59%1,0761,0066.96%1.43%
Ampuagan2.09%6265798.12%1.66%
Baballasioan2.35%706769-8.19%-1.78%
Baliw Daya1.67%5004569.65%1.96%
Baliw Laud2.11%6335848.39%1.71%
Bia-o1.77%532577-7.80%-1.69%
Butir2.12%635724-12.29%-2.72%
Cabaroan4.31%1,2931,485-12.93%-2.87%
Danuman East1.51%4534363.90%0.81%
Danuman West2.07%620639-2.97%-0.63%
Dunglayan2.50%750837-10.39%-2.28%
Gusing3.78%1,1341,153-1.65%-0.35%
Langaoan2.18%653678-3.69%-0.79%
Laslasong Norte3.06%917960-4.48%-0.96%
Laslasong Sur2.78%83563032.54%6.11%
Laslasong West0.79%23619024.21%4.67%
Lesseb0.65%194209-7.18%-1.56%
Lingsat7.16%2,1472,0574.38%0.91%
Lubong3.57%1,07296011.67%2.35%
Maynganay Norte2.92%8778681.04%0.22%
Maynganay Sur2.77%8328171.84%0.38%
Nagsayaoan2.82%8457877.37%1.51%
Nagtupacan2.91%87477812.34%2.48%
Nalvo4.85%1,4561,500-2.93%-0.62%
Pacang2.24%672711-5.49%-1.18%
Penned0.74%22119314.51%2.89%
Poblacion Norte4.05%1,2151,1862.45%0.51%
Poblacion Sur7.26%2,1772,0287.35%1.50%
Silag4.71%1,4141,3991.07%0.22%
Sumagui0.88%2652611.53%0.32%
Suso6.67%2,0022,626-23.76%-5.55%
Tangaoan4.02%1,2071,2030.33%0.07%
Tinaan3.12%9371,035-9.47%-2.07%
Santa Maria Total30,00630,321-1.04%-0.22%

Economy

The annual regular revenue of Santa Maria for the fiscal year of 2016 was 89,168,521.34.

details
Annual regular income of Santa Maria (2009‑2016)
Fiscal YearAnnual Regular IncomeChange
200954,686,213.55
2010103,206,999.0488.73%
2011141,318,131.8636.93%
201293,276,964.42-34.00%
2013102,982,570.8510.41%
201474,108,814.23-28.04%
201580,794,914.939.02%
201689,168,521.3410.36%

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 Santa Maria in the 2015 Census was 30,303 broken down into 6,944 households or an average of 4.36 members per household.

details
Number of households in Santa Maria (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
23,8154,6445.13
24,5635,0074.91
26,3875,4144.87
27,9376,0694.60
28,5796,3484.50
30,3036,9444.36

Population by age group

According to the 2015 Census, the age group with the highest population in Santa Maria is 10 to 14, with 2,885 individuals. Conversely, the age group with the lowest population is Under 1, with 485 individuals.

details
Population of Santa Maria by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 14851.60%
1 to 42,2507.42%
5 to 92,8519.40%
10 to 142,8859.51%
15 to 192,7118.94%
20 to 242,7028.91%
25 to 292,2897.55%
30 to 342,2577.44%
35 to 392,0216.67%
40 to 441,7285.70%
45 to 491,7895.90%
50 to 541,5745.19%
55 to 591,2584.15%
60 to 641,0713.53%
65 to 697782.57%
70 to 745981.97%
75 to 795111.69%
80 and over5631.86%
Total30,321100.00%
  • Youth Dependency Ratio: 43.66
  • Old Age Dependency Ratio: 12.63
  • Total Dependency Ratio: 56.29
  • Median Age: 27.79

Historical population

The population of Santa Maria grew from 10,082 in 1903 to 30,006 in 2020, an increase of 19,924 people over the course of 117 years. The latest census figures in 2020 denote a negative growth rate of 0.22%, or a decrease of 315 people, from the previous population of 30,321 in 2015.

details
Population of Santa Maria (1903‑2020)
Census datePopulationGrowth rate
10,082
11,7430.97%
13,1030.55%
13,6370.41%
16,3131.59%
18,8191.41%
19,8571.08%
21,3081.42%
23,8211.12%
24,5800.59%
26,3961.54%
28,0020.82%
28,5970.77%
30,3211.12%
30,006-0.22%

The total number of registered voters or electorate in Santa Maria for the year 2019 was 21,009, broken down into 10,557 males and 10,452 females.

Location

The municipal center of Santa Maria is situated at approximately 17° 22' North, 120° 29' East, in the island of Luzon. Elevation at these coordinates is estimated at 8.7 meters or 28.6 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 Santa Maria are Candon, Ilocos Sur, Vigan, Ilocos Sur, Batac, Ilocos Norte, San Fernando, La Union, Laoag, Ilocos Norte, and Baguio. The nearest municipalities are Burgos, Ilocos Sur, Narvacan, Ilocos Sur, San Esteban, Ilocos Sur, Santiago, Ilocos Sur, Nagbukel, Ilocos Sur, and Lidlidda, Ilocos Sur. Its distance from the national capital is 311.91 kilometers (193.81 miles). The following list delineates such distance measurements.

great-circle distance

Nearest towns

Nearest cities

Distance from Manila: 311.91 kilometers (193.81 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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