Rivadavia, Municipality of Narvacan, Province of Ilocos Sur

Summary data
Typebarangay
Island groupLuzon
RegionIlocos Region (Region I)
ProvinceIlocos Sur
MunicipalityNarvacan
Postal code2704
Population (2020)712
Philippine major island(s)Luzon
Coordinates17.4164, 120.4916 (17° 25' North, 120° 29' East)
Estimated elevation above sea level12.2 meters (40.0 feet)

Rivadavia is a barangay in the municipality of Narvacan, in the province of Ilocos Sur. Its population as determined by the 2020 Census was 712. This represented 1.54% of the total population of Narvacan.

Demographics

Households

The household population of Rivadavia in the 2015 Census was 747 broken down into 173 households or an average of 4.32 members per household.

details
Number of households in Rivadavia (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
5871214.85
5541214.58
5551274.37
6061354.49
6091424.29
7471734.32

Population by age group

According to the 2015 Census, the age groups with the highest population in Rivadavia are in the ranges 15 to 19, and 20 to 24, with 66 individuals. Conversely, the age group with the lowest population is 75 to 79, with 10 individuals.

details
Population of Rivadavia by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 1202.68%
1 to 4618.17%
5 to 9597.90%
10 to 14577.63%
15 to 19668.84%
20 to 24668.84%
25 to 29638.43%
30 to 34648.57%
35 to 39547.23%
40 to 44557.36%
45 to 49385.09%
50 to 54385.09%
55 to 59222.95%
60 to 64273.61%
65 to 69233.08%
70 to 74121.61%
75 to 79101.34%
80 and over121.61%
Total747100.00%
  • Youth Dependency Ratio: 39.96
  • Old Age Dependency Ratio: 11.56
  • Total Dependency Ratio: 51.52
  • Median Age: 28.53

Historical population

The population of Rivadavia grew from 587 in 1990 to 712 in 2020, an increase of 125 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 1.00%, or a decrease of 35 people, from the previous population of 747 in 2015.

Population of Rivadavia (1990‑2020)
Census datePopulationGrowth rate
587
554-1.08%
5550.04%
6061.22%
6090.18%
7473.96%
712-1.00%

Location

Rivadavia is situated at approximately 17.4164, 120.4916, in the island of Luzon. Elevation at these coordinates is estimated at 12.2 meters or 40.0 feet above mean sea level.


Adjacent barangays

Rivadavia 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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