Batu, Municipality of Siay, Province of Zamboanga Sibugay

Summary data
Typebarangay
Island groupMindanao
RegionZamboanga Peninsula (Region IX)
ProvinceZamboanga Sibugay
MunicipalitySiay
Postal code7006
Population (2020)3,670
Philippine major island(s)Mindanao
Coordinates7.7516, 122.8280 (7° 45' North, 122° 50' East)
Estimated elevation above sea level12.8 meters (42.0 feet)

Batu is a barangay in the municipality of Siay, in the province of Zamboanga Sibugay. Its population as determined by the 2020 Census was 3,670. This represented 9.04% of the total population of Siay.

Demographics

Households

The household population of Batu in the 2015 Census was 3,718 broken down into 774 households or an average of 4.80 members per household.

Trends in household population and size

Number of households in Batu (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
2,0373795.37
2,3364475.23
2,7405175.30
1,9233745.14
2,8205804.86
3,7187744.80

Population by age group

According to the 2015 Census, the age group with the highest population in Batu is 10 to 14, with 443 individuals. Conversely, the age group with the lowest population is 80 and over, with 32 individuals.

Age distribution

Population of Batu by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 1752.02%
1 to 43509.41%
5 to 940210.81%
10 to 1444311.92%
15 to 1940010.76%
20 to 2437410.06%
25 to 292767.42%
30 to 341925.16%
35 to 392175.84%
40 to 442045.49%
45 to 492236.00%
50 to 541624.36%
55 to 591213.25%
60 to 64942.53%
65 to 69641.72%
70 to 74471.26%
75 to 79421.13%
80 and over320.86%
Total3,718100.00%
  • Youth Dependency Ratio: 56.12
  • Old Age Dependency Ratio: 8.17
  • Total Dependency Ratio: 64.29
  • Median Age: 22.53

Historical population

The population of Batu grew from 2,037 in 1990 to 3,670 in 2020, an increase of 1,633 people over the course of 30 years. The latest census figures in 2020 denote a negative annualized growth rate of 0.27%, or a decrease of 48 people, from the previous population of 3,718 in 2015.

Trends in population growth

Population of Batu (1990‑2020)
Census datePopulationAnnualized Growth Rate
2,037
2,3362.60%
2,7403.48%
1,923-4.77%
2,82014.95%
3,7185.40%
3,670-0.27%

Location

Batu is situated at approximately 7.7516, 122.8280, in the island of Mindanao. Elevation at these coordinates is estimated at 12.8 meters or 42.0 feet above mean sea level.


Adjacent barangays

Batu 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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