Duyayyat, Municipality of Sinait, Province of Ilocos Sur
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | Ilocos Region (Region I) |
| Province | Ilocos Sur |
| Municipality | Sinait |
| Postal code | 2733 |
| Population (2020) | 441 |
| Philippine major island(s) | Luzon |
| Coordinates | 17.8544, 120.4754 (17° 51' North, 120° 29' East) |
| Estimated elevation above sea level | 20.0 meters (65.6 feet) |
Duyayyat is a barangay in the municipality of Sinait, in the province of Ilocos Sur. Its population as determined by the 2020 Census was 441. This represented 1.70% of the total population of Sinait.
Demographics
Households
The household population of Duyayyat in the 2015 Census was 503 broken down into 126 households or an average of 3.99 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 360 | 78 | 4.62 | |
| 362 | 84 | 4.31 | |
| 397 | 97 | 4.09 | |
| 439 | 112 | 3.92 | |
| 451 | 115 | 3.92 | |
| 503 | 126 | 3.99 |
Population by age group
According to the 2015 Census, the age group with the highest population in Duyayyat is 25 to 29, with 53 individuals. Conversely, the age group with the lowest population is 80 and over, with 6 individuals.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 10 | 1.99% |
| 1 to 4 | 42 | 8.35% |
| 5 to 9 | 38 | 7.55% |
| 10 to 14 | 28 | 5.57% |
| 15 to 19 | 22 | 4.37% |
| 20 to 24 | 35 | 6.96% |
| 25 to 29 | 53 | 10.54% |
| 30 to 34 | 46 | 9.15% |
| 35 to 39 | 40 | 7.95% |
| 40 to 44 | 30 | 5.96% |
| 45 to 49 | 34 | 6.76% |
| 50 to 54 | 27 | 5.37% |
| 55 to 59 | 24 | 4.77% |
| 60 to 64 | 18 | 3.58% |
| 65 to 69 | 20 | 3.98% |
| 70 to 74 | 12 | 2.39% |
| 75 to 79 | 18 | 3.58% |
| 80 and over | 6 | 1.19% |
| Total | 503 | 100.00% |
| ||
Historical population
The population of Duyayyat grew from 360 in 1990 to 441 in 2020, an increase of 81 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 2.73%, or a decrease of 62 people, from the previous population of 503 in 2015.
| Census date | Population | Growth rate |
|---|---|---|
| 360 | – | |
| 362 | 0.10% | |
| 397 | 2.00% | |
| 439 | 1.40% | |
| 451 | 0.99% | |
| 503 | 2.10% | |
| 441 | -2.73% |
Location
Duyayyat is situated at approximately 17.8544, 120.4754, in the island of Luzon. Elevation at these coordinates is estimated at 20.0 meters or 65.6 feet above mean sea level.
Adjacent barangays
Duyayyat shares a common border with the following barangay(s):
Notes
- Data on population, and households, are from the Philippine Statistics Authority.
- Postal code information is from the Philippine Postal Corporation.