Gangalan, Municipality of San Mariano, Province of Isabela

Summary data
Typebarangay
Island groupLuzon
RegionCagayan Valley (Region II)
ProvinceIsabela
MunicipalitySan Mariano
Postal code3332
Population (2020)1,779
Philippine major island(s)Luzon
Coordinates16.8972, 122.0601 (16° 54' North, 122° 4' East)
Estimated elevation above sea level210.7 meters (691.3 feet)

Gangalan is a barangay in the municipality of San Mariano, in the province of Isabela. Its population as determined by the 2020 Census was 1,779. This represented 2.96% of the total population of San Mariano.

Demographics

Households

The household population of Gangalan in the 2015 Census was 1,649 broken down into 359 households or an average of 4.59 members per household.

details
Number of households in Gangalan (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
7971595.01
8731874.67
1,0111955.18
1,2482754.54
1,5373334.62
1,6493594.59

Population by age group

According to the 2015 Census, the age group with the highest population in Gangalan is 5 to 9, with 249 individuals. Conversely, the age groups with the lowest population are in the ranges 70 to 74, and 75 to 79, with 9 individuals.

details
Population of Gangalan by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 1492.97%
1 to 416810.19%
5 to 924915.10%
10 to 1418811.40%
15 to 1919812.01%
20 to 2416810.19%
25 to 291277.70%
30 to 341056.37%
35 to 391076.49%
40 to 44814.91%
45 to 49593.58%
50 to 54513.09%
55 to 59422.55%
60 to 64191.15%
65 to 69100.61%
70 to 7490.55%
75 to 7990.55%
80 and over100.61%
Total1,649100.00%
  • Youth Dependency Ratio: 68.34
  • Old Age Dependency Ratio: 3.97
  • Total Dependency Ratio: 72.31
  • Median Age: 19.31

Historical population

The population of Gangalan grew from 797 in 1990 to 1,779 in 2020, an increase of 982 people over the course of 30 years. The latest census figures in 2020 denote a positive growth rate of 1.61%, or an increase of 130 people, from the previous population of 1,649 in 2015.

Population of Gangalan (1990‑2020)
Census datePopulationGrowth rate
797
8731.72%
1,0113.20%
1,2482.95%
1,5377.88%
1,6491.35%
1,7791.61%

Location

Gangalan is situated at approximately 16.8972, 122.0601, in the island of Luzon. Elevation at these coordinates is estimated at 210.7 meters or 691.3 feet above mean sea level.


Adjacent barangays

Gangalan 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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