Isok I, Municipality of Boac, Province of Marinduque
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | MIMAROPA Region |
| Province | Marinduque |
| Municipality | Boac |
| Postal code | 4900 |
| Population (2020) | 1,199 |
| Philippine major island(s) | Marinduque |
| Coordinates | 13.4454, 121.8423 (13° 27' North, 121° 51' East) |
| Estimated elevation above sea level | 35.9 meters (117.8 feet) |
Isok I, formerly Poblacion, is a barangay in the municipality of Boac, in the province of Marinduque. Its population as determined by the 2020 Census was 1,199. This represented 2.09% of the total population of Boac.
Demographics
Households
The household population of Isok I in the 2015 Census was 1,254 broken down into 240 households or an average of 5.23 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 929 | 189 | 4.92 | |
| 981 | 200 | 4.91 | |
| 1,219 | 236 | 5.17 | |
| 1,282 | 254 | 5.05 | |
| 1,236 | 264 | 4.68 | |
| 1,254 | 240 | 5.23 |
Population by age group
According to the 2015 Census, the age group with the highest population in Isok I is 15 to 19, with 150 individuals. Conversely, the age group with the lowest population is 75 to 79, with 15 individuals.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 16 | 1.25% |
| 1 to 4 | 76 | 5.95% |
| 5 to 9 | 129 | 10.10% |
| 10 to 14 | 139 | 10.88% |
| 15 to 19 | 150 | 11.75% |
| 20 to 24 | 89 | 6.97% |
| 25 to 29 | 91 | 7.13% |
| 30 to 34 | 78 | 6.11% |
| 35 to 39 | 90 | 7.05% |
| 40 to 44 | 80 | 6.26% |
| 45 to 49 | 85 | 6.66% |
| 50 to 54 | 68 | 5.32% |
| 55 to 59 | 44 | 3.45% |
| 60 to 64 | 44 | 3.45% |
| 65 to 69 | 41 | 3.21% |
| 70 to 74 | 25 | 1.96% |
| 75 to 79 | 15 | 1.17% |
| 80 and over | 17 | 1.33% |
| Total | 1,277 | 100.00% |
| ||
Historical population
The population of Isok I grew from 941 in 1990 to 1,199 in 2020, an increase of 258 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 1.32%, or a decrease of 78 people, from the previous population of 1,277 in 2015.
| Census date | Population | Growth rate |
|---|---|---|
| 941 | – | |
| 1,001 | 1.16% | |
| 1,226 | 4.44% | |
| 1,292 | 0.73% | |
| 1,236 | -1.60% | |
| 1,277 | 0.62% | |
| 1,199 | -1.32% |
Location
Isok I is situated at approximately 13.4454, 121.8423, in the island of Marinduque. Elevation at these coordinates is estimated at 35.9 meters or 117.8 feet above mean sea level.
Adjacent barangays
Isok I 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.