San Isidro, Municipality of Diffun, Province of Quirino

Summary data
Typebarangay
Island groupLuzon
RegionCagayan Valley (Region II)
ProvinceQuirino
MunicipalityDiffun
Postal code3401
Population (2020)2,030
Philippine major island(s)Luzon
Coordinates16.6331, 121.5055 (16° 38' North, 121° 30' East)
Estimated elevation above sea level113.1 meters (371.1 feet)

San Isidro is a barangay in the municipality of Diffun, in the province of Quirino. Its population as determined by the 2020 Census was 2,030. This represented 3.62% of the total population of Diffun.

Demographics

Households

The household population of San Isidro in the 2015 Census was 1,940 broken down into 463 households or an average of 4.19 members per household.

details
Number of households in San Isidro (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
9221805.12
1,0472174.82
1,2692644.81
1,5733714.24
1,8294094.47
1,9404634.19

Population by age group

According to the 2015 Census, the age group with the highest population in San Isidro is 5 to 9, with 212 individuals. Conversely, the age group with the lowest population is 70 to 74, with 14 individuals.

details
Population of San Isidro by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 1422.16%
1 to 41618.30%
5 to 921210.93%
10 to 1420210.41%
15 to 191879.64%
20 to 241688.66%
25 to 291588.14%
30 to 341497.68%
35 to 391326.80%
40 to 441216.24%
45 to 491115.72%
50 to 54864.43%
55 to 59613.14%
60 to 64512.63%
65 to 69432.22%
70 to 74140.72%
75 to 79221.13%
80 and over201.03%
Total1,940100.00%
  • Youth Dependency Ratio: 50.41
  • Old Age Dependency Ratio: 8.09
  • Total Dependency Ratio: 58.5
  • Median Age: 24.94

Historical population

The population of San Isidro grew from 922 in 1990 to 2,030 in 2020, an increase of 1,108 people over the course of 30 years. The latest census figures in 2020 denote a positive growth rate of 0.96%, or an increase of 90 people, from the previous population of 1,940 in 2015.

Population of San Isidro (1990‑2020)
Census datePopulationGrowth rate
922
1,0472.41%
1,2694.21%
1,5733.01%
1,8295.64%
1,9401.13%
2,0300.96%

Location

San Isidro is situated at approximately 16.6331, 121.5055, in the island of Luzon. Elevation at these coordinates is estimated at 113.1 meters or 371.1 feet above mean sea level.


Adjacent barangays

San Isidro 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.
(Back to top)