Langaoan, Municipality of Santa Maria, Province of Ilocos Sur

Summary data
Typebarangay
Island groupLuzon
RegionIlocos Region (Region I)
ProvinceIlocos Sur
MunicipalitySanta Maria
Postal code2705
Population (2020)653
Philippine major island(s)Luzon
Coordinates17.3549, 120.4936 (17° 21' North, 120° 30' East)
Estimated elevation above sea level11.9 meters (39.0 feet)

Langaoan is a barangay in the municipality of Santa Maria, in the province of Ilocos Sur. Its population as determined by the 2020 Census was 653. This represented 2.18% of the total population of Santa Maria.

Demographics

Households

The household population of Langaoan in the 2015 Census was 678 broken down into 160 households or an average of 4.24 members per household.

details
Number of households in Langaoan (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
5331015.28
505995.10
5111114.60
5481204.57
6501464.45
6781604.24

Population by age group

According to the 2015 Census, the age group with the highest population in Langaoan is 20 to 24, with 66 individuals. Conversely, the age group with the lowest population is Under 1, with 7 individuals.

details
Population of Langaoan by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 171.03%
1 to 4395.75%
5 to 9649.44%
10 to 14608.85%
15 to 19517.52%
20 to 24669.73%
25 to 29578.41%
30 to 34487.08%
35 to 39345.01%
40 to 44395.75%
45 to 49588.55%
50 to 54416.05%
55 to 59304.42%
60 to 64223.24%
65 to 69182.65%
70 to 74152.21%
75 to 79172.51%
80 and over121.77%
Total678100.00%
  • Youth Dependency Ratio: 38.12
  • Old Age Dependency Ratio: 13.9
  • Total Dependency Ratio: 52.02
  • Median Age: 29.56

Historical population

The population of Langaoan grew from 533 in 1990 to 653 in 2020, an increase of 120 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 0.79%, or a decrease of 25 people, from the previous population of 678 in 2015.

Population of Langaoan (1990‑2020)
Census datePopulationGrowth rate
533
505-1.01%
5110.25%
5480.97%
6506.41%
6780.81%
653-0.79%

Location

Langaoan is situated at approximately 17.3549, 120.4936, in the island of Luzon. Elevation at these coordinates is estimated at 11.9 meters or 39.0 feet above mean sea level.


Adjacent barangays

Langaoan shares a common border with the following barangay(s):

Notes

  1. Data on population, and households, are from the Philippine Statistics Authority.
  2. Postal code information is from the Philippine Postal Corporation.
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