Casasahan Ibaba, Municipality of Gumaca, Province of Quezon
| Type | barangay |
|---|---|
| Island group | Luzon |
| Region | CALABARZON (Region IV‑A) |
| Province | Quezon |
| Municipality | Gumaca |
| Postal code | 4307 |
| Population (2020) | 442 |
| Philippine major island(s) | Luzon |
| Coordinates | 13.8334, 122.0650 (13° 50' North, 122° 4' East) |
| Estimated elevation above sea level | 14.0 meters (45.9 feet) |
Casasahan Ibaba is a barangay in the municipality of Gumaca, in the province of Quezon. Its population as determined by the 2020 Census was 442. This represented 0.61% of the total population of Gumaca.
Demographics
Households
The household population of Casasahan Ibaba in the 2015 Census was 538 broken down into 128 households or an average of 4.20 members per household.
details
| Census date | Household population | Number of households | Average household size |
|---|---|---|---|
| 465 | 96 | 4.84 | |
| 517 | 102 | 5.07 | |
| 366 | 71 | 5.15 | |
| 442 | 111 | 3.98 | |
| 514 | 109 | 4.72 | |
| 538 | 128 | 4.20 |
Population by age group
According to the 2015 Census, the age group with the highest population in Casasahan Ibaba is 15 to 19, with 64 individuals. Conversely, the age group with the lowest population is Under 1, with 1 individual.
details
| Age group | Population (2015) | Age group percentage |
|---|---|---|
| Under 1 | 1 | 0.19% |
| 1 to 4 | 29 | 5.39% |
| 5 to 9 | 59 | 10.97% |
| 10 to 14 | 62 | 11.52% |
| 15 to 19 | 64 | 11.90% |
| 20 to 24 | 63 | 11.71% |
| 25 to 29 | 26 | 4.83% |
| 30 to 34 | 22 | 4.09% |
| 35 to 39 | 32 | 5.95% |
| 40 to 44 | 25 | 4.65% |
| 45 to 49 | 46 | 8.55% |
| 50 to 54 | 27 | 5.02% |
| 55 to 59 | 34 | 6.32% |
| 60 to 64 | 17 | 3.16% |
| 65 to 69 | 6 | 1.12% |
| 70 to 74 | 13 | 2.42% |
| 75 to 79 | 10 | 1.86% |
| 80 and over | 2 | 0.37% |
| Total | 538 | 100.00% |
| ||
Historical population
The population of Casasahan Ibaba fell from 465 in 1990 to 442 in 2020, a decrease of 23 people over the course of 30 years. The latest census figures in 2020 denote a negative growth rate of 4.05%, or a decrease of 96 people, from the previous population of 538 in 2015.
| Census date | Population | Growth rate |
|---|---|---|
| 465 | – | |
| 517 | 2.01% | |
| 366 | -7.14% | |
| 442 | 2.64% | |
| 514 | 5.65% | |
| 538 | 0.87% | |
| 442 | -4.05% |
Location
Casasahan Ibaba is situated at approximately 13.8334, 122.0650, in the island of Luzon. Elevation at these coordinates is estimated at 14.0 meters or 45.9 feet above mean sea level.
Adjacent barangays
Casasahan Ibaba 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.