Zone 4 Poblacion, Municipality of Iba, Province of Zambales

Summary data
Typebarangay
Island groupLuzon
RegionCentral Luzon (Region III)
ProvinceZambales
MunicipalityIba
Postal code2201
Population (2020)443
Philippine major island(s)Luzon
Coordinates15.3260, 119.9788 (15° 20' North, 119° 59' East)
Estimated elevation above sea level12.2 meters (40.0 feet)

Zone 4 Poblacion, formerly Sagapan, is a barangay in the municipality of Iba, in the province of Zambales. Its population as determined by the 2020 Census was 443. This represented 0.80% of the total population of Iba.

Demographics

Households

The household population of Zone 4 Poblacion in the 2015 Census was 523 broken down into 128 households or an average of 4.09 members per household.

details
Number of households in Zone 4 Poblacion (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
6501095.96
4881054.65
4591084.25
5371334.04
5621423.96
5231284.09

Population by age group

According to the 2015 Census, the age group with the highest population in Zone 4 Poblacion is 20 to 24, with 61 individuals. Conversely, the age group with the lowest population is Under 1, with 5 individuals.

details
Population of Zone 4 Poblacion by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 150.96%
1 to 4275.16%
5 to 9438.22%
10 to 145811.09%
15 to 19499.37%
20 to 246111.66%
25 to 29366.88%
30 to 34234.40%
35 to 39529.94%
40 to 44275.16%
45 to 49468.80%
50 to 54193.63%
55 to 59203.82%
60 to 64132.49%
65 to 69163.06%
70 to 74152.87%
75 to 7961.15%
80 and over71.34%
Total523100.00%
  • Youth Dependency Ratio: 38.44
  • Old Age Dependency Ratio: 12.72
  • Total Dependency Ratio: 51.16
  • Median Age: 27.57

Historical population

The population of Zone 4 Poblacion fell from 661 in 1990 to 443 in 2020, a decrease of 218 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 3.43%, or a decrease of 80 people, from the previous population of 523 in 2015.

Population of Zone 4 Poblacion (1990‑2020)
Census datePopulationGrowth rate
661
536-3.85%
459-3.27%
5372.19%
5621.67%
523-1.36%
443-3.43%

Location

Zone 4 Poblacion is situated at approximately 15.3260, 119.9788, in the island of Luzon. Elevation at these coordinates is estimated at 12.2 meters or 40.0 feet above mean sea level.


Adjacent barangays

Zone 4 Poblacion 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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