Iraya Sur, Municipality of Oas, Province of Albay

Summary data
Typebarangay
Island groupLuzon
RegionBicol Region (Region V)
ProvinceAlbay
MunicipalityOas
Postal code4504
Population (2020)600
Philippine major island(s)Luzon
Coordinates13.2556, 123.5028 (13° 15' North, 123° 30' East)
Estimated elevation above sea level36.3 meters (119.1 feet)

Iraya Sur is a barangay in the municipality of Oas, in the province of Albay. Its population as determined by the 2020 Census was 600. This represented 0.91% of the total population of Oas.

Demographics

Households

The household population of Iraya Sur in the 2015 Census was 774 broken down into 160 households or an average of 4.84 members per household.

details
Number of households in Iraya Sur (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
7821445.43
7811525.14
7601534.97
7361405.26
7091524.66
7741604.84

Population by age group

According to the 2015 Census, the age group with the highest population in Iraya Sur is 20 to 24, with 90 individuals. Conversely, the age group with the lowest population is Under 1, with 8 individuals.

details
Population of Iraya Sur by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 181.03%
1 to 4344.39%
5 to 9557.11%
10 to 14648.27%
15 to 198711.24%
20 to 249011.63%
25 to 29617.88%
30 to 34536.85%
35 to 39506.46%
40 to 44465.94%
45 to 49415.30%
50 to 54486.20%
55 to 59243.10%
60 to 64303.88%
65 to 69263.36%
70 to 74243.10%
75 to 79141.81%
80 and over192.45%
Total774100.00%
  • Youth Dependency Ratio: 30.38
  • Old Age Dependency Ratio: 15.66
  • Total Dependency Ratio: 46.04
  • Median Age: 29.02

Historical population

The population of Iraya Sur fell from 782 in 1990 to 600 in 2020, a decrease of 182 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 5.22%, or a decrease of 174 people, from the previous population of 774 in 2015.

Population of Iraya Sur (1990‑2020)
Census datePopulationGrowth rate
782
781-0.02%
760-0.58%
736-0.44%
711-1.25%
7741.63%
600-5.22%

Location

Iraya Sur is situated at approximately 13.2556, 123.5028, in the island of Luzon. Elevation at these coordinates is estimated at 36.3 meters or 119.1 feet above mean sea level.


Adjacent barangays

Iraya Sur 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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