Siay, Municipality of San Miguel, Province of Catanduanes
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | Bicol Region (Region V) |
| Province | Catanduanes |
| Municipality | San Miguel |
| Postal code | 4802 |
| Population (2020) | 469 |
| Philippine major island(s) | Catanduanes |
| Coordinates | 13.6839, 124.3017 (13° 41' North, 124° 18' East) |
| Estimated elevation above sea level | 31.4 meters (103.0 feet) |
Siay is a barangay in the municipality of San Miguel, in the province of Catanduanes. Its population as determined by the 2020 Census was 469. This represented 2.99% of the total population of San Miguel.
Demographics
Households
The household population of Siay in the 2015 Census was 477 broken down into 106 households or an average of 4.50 members per household.
Trends in household population and size
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 398 | 68 | 5.85 | |
| 424 | 81 | 5.23 | |
| 387 | 83 | 4.66 | |
| 406 | 90 | 4.51 | |
| 465 | 92 | 5.05 | |
| 477 | 106 | 4.50 |
Population by age group
According to the 2015 Census, the age group with the highest population in Siay is 5 to 9, with 67 individuals. Conversely, the age group with the lowest population is 75 to 79, with 3 individuals.
Age distribution
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 18 | 3.61% |
| 1 to 4 | 40 | 8.03% |
| 5 to 9 | 67 | 13.45% |
| 10 to 14 | 55 | 11.04% |
| 15 to 19 | 49 | 9.84% |
| 20 to 24 | 35 | 7.03% |
| 25 to 29 | 45 | 9.04% |
| 30 to 34 | 35 | 7.03% |
| 35 to 39 | 24 | 4.82% |
| 40 to 44 | 25 | 5.02% |
| 45 to 49 | 21 | 4.22% |
| 50 to 54 | 23 | 4.62% |
| 55 to 59 | 16 | 3.21% |
| 60 to 64 | 16 | 3.21% |
| 65 to 69 | 13 | 2.61% |
| 70 to 74 | 7 | 1.41% |
| 75 to 79 | 3 | 0.60% |
| 80 and over | 6 | 1.20% |
| Total | 498 | 100.00% |
| ||
Historical population
The population of Siay grew from 398 in 1990 to 469 in 2020, an increase of 71 people over the course of 30 years. The latest census figures in 2020 denote a negative annualized growth rate of 1.25%, or a decrease of 29 people, from the previous population of 498 in 2015.
Trends in population growth
| Census date | Population | Annualized Growth Rate |
|---|---|---|
| 398 | – | |
| 424 | 1.19% | |
| 387 | -1.94% | |
| 406 | 0.66% | |
| 465 | 5.06% | |
| 498 | 1.31% | |
| 469 | -1.25% |
Location
Siay is situated at approximately 13.6839, 124.3017, in the island of Catanduanes. Elevation at these coordinates is estimated at 31.4 meters or 103.0 feet above mean sea level.
Adjacent barangays
Siay 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.