Ibujan, Municipality of San Mariano, Province of Isabela

Summary data
Typebarangay
Island groupLuzon
RegionCagayan Valley (Region II)
ProvinceIsabela
MunicipalitySan Mariano
Postal code3332
Population (2020)732
Philippine major island(s)Luzon
Coordinates16.8254, 122.0571 (16° 50' North, 122° 3' East)
Estimated elevation above sea level189.9 meters (623.0 feet)

Ibujan is a barangay in the municipality of San Mariano, in the province of Isabela. Its population as determined by the 2020 Census was 732. This represented 1.22% of the total population of San Mariano.

Demographics

Households

The household population of Ibujan in the 2015 Census was 814 broken down into 165 households or an average of 4.93 members per household.

details
Number of households in Ibujan (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
449845.35
490925.33
527876.06
6881325.21
8171555.27
8141654.93

Population by age group

According to the 2015 Census, the age group with the highest population in Ibujan is 5 to 9, with 126 individuals. Conversely, the age group with the lowest population is 80 and over, with 4 individuals.

details
Population of Ibujan by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 1141.72%
1 to 49211.30%
5 to 912615.48%
10 to 1410713.14%
15 to 198610.57%
20 to 24657.99%
25 to 29485.90%
30 to 34627.62%
35 to 39536.51%
40 to 44425.16%
45 to 49263.19%
50 to 54323.93%
55 to 59141.72%
60 to 64192.33%
65 to 6991.11%
70 to 7460.74%
75 to 7991.11%
80 and over40.49%
Total814100.00%
  • Youth Dependency Ratio: 75.84
  • Old Age Dependency Ratio: 6.26
  • Total Dependency Ratio: 82.1
  • Median Age: 18.95

Historical population

The population of Ibujan grew from 449 in 1990 to 732 in 2020, an increase of 283 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 2.21%, or a decrease of 82 people, from the previous population of 814 in 2015.

Population of Ibujan (1990‑2020)
Census datePopulationGrowth rate
449
4901.65%
5271.57%
6883.75%
8176.46%
814-0.07%
732-2.21%

Location

Ibujan is situated at approximately 16.8254, 122.0571, in the island of Luzon. Elevation at these coordinates is estimated at 189.9 meters or 623.0 feet above mean sea level.


Adjacent barangays

Ibujan 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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