Namnama, Municipality of Sinait, Province of Ilocos Sur

Summary data
Typebarangay
Island groupLuzon
RegionIlocos Region (Region I)
ProvinceIlocos Sur
MunicipalitySinait
Postal code2733
Population (2020)725
Philippine major island(s)Luzon
Coordinates17.8663, 120.4596 (17° 52' North, 120° 28' East)
Estimated elevation above sea level11.8 meters (38.7 feet)

Namnama, formerly Poblacion, is a barangay in the municipality of Sinait, in the province of Ilocos Sur. Its population as determined by the 2020 Census was 725. This represented 2.79% of the total population of Sinait.

Demographics

Households

The household population of Namnama in the 2015 Census was 746 broken down into 193 households or an average of 3.87 members per household.

details
Number of households in Namnama (1990‑2015)
Census dateHousehold populationNumber of householdsAverage household size
7471514.95
7721584.89
8411694.98
7181694.25
7841784.40
7461933.87

Population by age group

According to the 2015 Census, the age group with the highest population in Namnama is 15 to 19, with 74 individuals. Conversely, the age group with the lowest population is Under 1, with 4 individuals.

details
Population of Namnama by age group (2015 census)
Age groupPopulation (2015)Age group percentage
Under 140.54%
1 to 4405.36%
5 to 9486.43%
10 to 14648.58%
15 to 19749.92%
20 to 24587.77%
25 to 29567.51%
30 to 34354.69%
35 to 39486.43%
40 to 44526.97%
45 to 49567.51%
50 to 54445.90%
55 to 59344.56%
60 to 64374.96%
65 to 69233.08%
70 to 74253.35%
75 to 79192.55%
80 and over293.89%
Total746100.00%
  • Youth Dependency Ratio: 31.58
  • Old Age Dependency Ratio: 19.43
  • Total Dependency Ratio: 51.01
  • Median Age: 34.14

Historical population

The population of Namnama fell from 747 in 1990 to 725 in 2020, a decrease of 22 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 0.60%, or a decrease of 21 people, from the previous population of 746 in 2015.

Population of Namnama (1990‑2020)
Census datePopulationGrowth rate
747
7720.62%
8411.85%
718-2.16%
7843.25%
746-0.94%
725-0.60%

Location

Namnama is situated at approximately 17.8663, 120.4596, in the island of Luzon. Elevation at these coordinates is estimated at 11.8 meters or 38.7 feet above mean sea level.


Adjacent barangays

Namnama 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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