Curtin, Municipality of Sinait, Province of Ilocos Sur

Summary data
Typebarangay
Island groupLuzon
RegionIlocos Region (Region I)
ProvinceIlocos Sur
MunicipalitySinait
Postal code2733
Population (2020)318
Philippine major island(s)Luzon
Coordinates17.8494, 120.4598 (17° 51' North, 120° 28' East)
Estimated elevation above sea level16.7 meters (54.8 feet)

Curtin is a barangay in the municipality of Sinait, in the province of Ilocos Sur. Its population as determined by the 2020 Census was 318. This represented 1.22% of the total population of Sinait.

Demographics

Households

The household population of Curtin in the 2015 Census was 332 broken down into 89 households or an average of 3.73 members per household.

details
Number of households in Curtin (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
326774.23
334834.02
325764.28
352834.24
346854.07
332893.73

Population by age group

According to the 2015 Census, the age group with the highest population in Curtin is 5 to 9, with 39 individuals. Conversely, the age groups with the lowest population are in the ranges Under 1, and 60 to 64, with 5 individuals.

details
Population of Curtin by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 151.51%
1 to 4226.63%
5 to 93911.75%
10 to 14247.23%
15 to 19247.23%
20 to 24257.53%
25 to 29257.53%
30 to 34185.42%
35 to 39216.33%
40 to 44236.93%
45 to 49175.12%
50 to 54154.52%
55 to 59144.22%
60 to 6451.51%
65 to 69195.72%
70 to 74175.12%
75 to 7961.81%
80 and over133.92%
Total332100.00%
  • Youth Dependency Ratio: 48.13
  • Old Age Dependency Ratio: 29.41
  • Total Dependency Ratio: 77.54
  • Median Age: 30.56

Historical population

The population of Curtin fell from 326 in 1990 to 318 in 2020, a decrease of 8 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 0.90%, or a decrease of 14 people, from the previous population of 332 in 2015.

Population of Curtin (1990‑2020)
Census datePopulationGrowth rate
326
3340.46%
325-0.58%
3521.11%
346-0.62%
332-0.78%
318-0.90%

Location

Curtin is situated at approximately 17.8494, 120.4598, in the island of Luzon. Elevation at these coordinates is estimated at 16.7 meters or 54.8 feet above mean sea level.


Adjacent barangays

Curtin 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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