Santo Rosario, Municipality of Iba, Province of Zambales

Summary data
Typebarangay
Island groupLuzon
RegionCentral Luzon (Region III)
ProvinceZambales
MunicipalityIba
Postal code2201
Population (2020)4,366
Philippine major island(s)Luzon
Coordinates15.3351, 119.9657 (15° 20' North, 119° 58' East)
Estimated elevation above sea level12.2 meters (40.0 feet)

Santo Rosario is a barangay in the municipality of Iba, in the province of Zambales. Its population as determined by the 2020 Census was 4,366. This represented 7.86% of the total population of Iba.

Demographics

Households

The household population of Santo Rosario in the 2015 Census was 3,966 broken down into 933 households or an average of 4.25 members per household.

details
Number of households in Santo Rosario (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
2,5124865.17
2,8175644.99
2,5445634.52
3,5887874.56
3,9329014.36
3,9669334.25

Population by age group

According to the 2015 Census, the age group with the highest population in Santo Rosario is 5 to 9, with 432 individuals. Conversely, the age group with the lowest population is 75 to 79, with 24 individuals.

details
Population of Santo Rosario by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 11062.66%
1 to 442910.78%
5 to 943210.86%
10 to 143869.70%
15 to 193689.25%
20 to 243117.82%
25 to 293047.64%
30 to 342756.91%
35 to 392927.34%
40 to 442145.38%
45 to 492345.88%
50 to 541543.87%
55 to 591674.20%
60 to 641152.89%
65 to 69922.31%
70 to 74370.93%
75 to 79240.60%
80 and over390.98%
Total3,979100.00%
  • Youth Dependency Ratio: 55.59
  • Old Age Dependency Ratio: 7.89
  • Total Dependency Ratio: 63.48
  • Median Age: 24.32

Historical population

The population of Santo Rosario grew from 2,512 in 1990 to 4,366 in 2020, an increase of 1,854 people over the course of 30 years. The latest census figures in 2020 denote a positive growth rate of 1.97%, or an increase of 387 people, from the previous population of 3,979 in 2015.

Population of Santo Rosario (1990‑2020)
Census datePopulationGrowth rate
2,512
2,8172.17%
2,544-2.16%
3,5884.86%
3,9323.39%
3,9790.23%
4,3661.97%

Location

Santo Rosario is situated at approximately 15.3351, 119.9657, 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

Santo Rosario 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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