Belen, Municipality of San Ildefonso, Province of Ilocos Sur

Summary data
Typebarangay
Island groupLuzon
RegionIlocos Region (Region I)
ProvinceIlocos Sur
MunicipalitySan Ildefonso
Postal code2728
Population (2020)120
Philippine major island(s)Luzon
Coordinates17.6190, 120.4360 (17° 37' North, 120° 26' East)
Estimated elevation above sea level29.5 meters (96.8 feet)

Belen is a barangay in the municipality of San Ildefonso, in the province of Ilocos Sur. Its population as determined by the 2020 Census was 120. This represented 1.47% of the total population of San Ildefonso.

Demographics

Households

The household population of Belen in the 2015 Census was 140 broken down into 34 households or an average of 4.12 members per household.

details
Number of households in Belen (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
64144.57
112176.59
117215.57
123264.73
133265.12
140344.12

Population by age group

According to the 2015 Census, the age group with the highest population in Belen is 35 to 39, with 14 individuals. Conversely, the age group with the lowest population is 75 to 79, with 1 individual.

details
Population of Belen by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 175.00%
1 to 4117.86%
5 to 985.71%
10 to 1485.71%
15 to 19117.86%
20 to 24107.14%
25 to 29128.57%
30 to 34128.57%
35 to 391410.00%
40 to 4464.29%
45 to 49107.14%
50 to 5485.71%
55 to 59107.14%
60 to 6453.57%
65 to 6921.43%
70 to 7421.43%
75 to 7910.71%
80 and over32.14%
Total140100.00%
  • Youth Dependency Ratio: 34.69
  • Old Age Dependency Ratio: 8.16
  • Total Dependency Ratio: 42.85
  • Median Age: 31.25

Historical population

The population of Belen grew from 64 in 1990 to 120 in 2020, an increase of 56 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 3.19%, or a decrease of 20 people, from the previous population of 140 in 2015.

Population of Belen (1990‑2020)
Census datePopulationGrowth rate
64
11211.05%
1170.94%
1230.69%
1332.89%
1400.98%
120-3.19%

Location

Belen is situated at approximately 17.6190, 120.4360, in the island of Luzon. Elevation at these coordinates is estimated at 29.5 meters or 96.8 feet above mean sea level.


Adjacent barangays

Belen 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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