Zone I Poblacion, Municipality of Bulan, Province of Sorsogon
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | Bicol Region (Region V) |
| Province | Sorsogon |
| Municipality | Bulan |
| Postal code | 4706 |
| Population (2020) | 668 |
| Philippine major island(s) | Luzon |
| Coordinates | 12.6626, 123.8756 (12° 40' North, 123° 53' East) |
| Estimated elevation above sea level | 4.4 meters (14.4 feet) |
Zone I Poblacion, formerly Barangay 1- South Ilawod, is a barangay in the municipality of Bulan, in the province of Sorsogon. Its population as determined by the 2020 Census was 668. This represented 0.64% of the total population of Bulan.
Demographics
Households
The household population of Zone I Poblacion in the 2015 Census was 648 broken down into 137 households or an average of 4.73 members per household.
Trends in household population and size
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 482 | 102 | 4.73 | |
| 506 | 108 | 4.69 | |
| 442 | 105 | 4.21 | |
| 558 | 122 | 4.57 | |
| 589 | 130 | 4.53 | |
| 648 | 137 | 4.73 |
Population by age group
According to the 2015 Census, the age group with the highest population in Zone I Poblacion is 10 to 14, with 80 individuals. Conversely, the age group with the lowest population is 75 to 79, with 4 individuals.
Age distribution
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 11 | 1.70% |
| 1 to 4 | 38 | 5.86% |
| 5 to 9 | 69 | 10.65% |
| 10 to 14 | 80 | 12.35% |
| 15 to 19 | 74 | 11.42% |
| 20 to 24 | 62 | 9.57% |
| 25 to 29 | 33 | 5.09% |
| 30 to 34 | 35 | 5.40% |
| 35 to 39 | 32 | 4.94% |
| 40 to 44 | 33 | 5.09% |
| 45 to 49 | 34 | 5.25% |
| 50 to 54 | 49 | 7.56% |
| 55 to 59 | 32 | 4.94% |
| 60 to 64 | 31 | 4.78% |
| 65 to 69 | 11 | 1.70% |
| 70 to 74 | 6 | 0.93% |
| 75 to 79 | 4 | 0.62% |
| 80 and over | 14 | 2.16% |
| Total | 648 | 100.00% |
| ||
Historical population
The population of Zone I Poblacion grew from 482 in 1990 to 668 in 2020, an increase of 186 people over the course of 30 years. The latest census figures in 2020 denote a positive annualized growth rate of 0.64%, or an increase of 20 people, from the previous population of 648 in 2015.
Trends in population growth
| Census date | Population | Annualized Growth Rate |
|---|---|---|
| 482 | – | |
| 506 | 0.91% | |
| 443 | -2.81% | |
| 558 | 3.23% | |
| 589 | 1.99% | |
| 648 | 1.83% | |
| 668 | 0.64% |
Location
Zone I Poblacion is situated at approximately 12.6626, 123.8756, in the island of Luzon. Elevation at these coordinates is estimated at 4.4 meters or 14.4 feet above mean sea level.
Adjacent barangays
Zone I Poblacion shares a common border with the following barangay(s):
- Zone II Poblacion (Barangay 2- West Ilawod), Bulan, Sorsogon
- Zone IV Poblacion (Barangay 4- West Central), Bulan, Sorsogon
- Zone VIII Poblacion (Barangay 8- Loyo), Bulan, Sorsogon
- Zone III Poblacion (Barangay 3- East Ilawod), Bulan, Sorsogon
- Libertad, Bulan, Sorsogon
- San Vicente, Bulan, Sorsogon
- San Rafael, Bulan, Sorsogon
Notes
- Data on population, and households, are from the Philippine Statistics Authority.
- Postal code information is from the Philippine Postal Corporation.