SPECIAL RELEASE: Age and Sex Distribution of Household Population in the Municipality of Balbalan (2020 Census of Population and Housing)

Reference Number: 


Release Date: 

Monday, May 15, 2023
Based on the 2020 Census of Population and Housing (2020 CPH), the Municipality of Balbalan had a Total Population of 12,914 persons. Of this total, the Household Population comprised 99.89 percent or 12,900 persons. 
Of the 12,900 Household Population in 2020, 6,953 (53.89%) were males while 5,947 (46.10%) were females. By age group, 3,467 (26.87%) were under 15 years of age (young dependents). On the other hand, persons aged 15 to 64 years (working-age or economically-active population) totaled to 8,275 (64.14%) while those in age groups 65 years and over (old dependents) comprised the remaining 1,158 (8.97%). In 2015, persons aged 0 to 14 years, 15 to 64 years, and 65 years and over accounted for 30.64, 61.12 and 8.24 percent respectively, of the Household Population.
Moreover, there were more males (88.02%) than females (85.93%) among the 0 to 59 age group. Meanwhile, among the older age group (60 years and over), females (14.07%) outnumbered the males (11.98%). The same trend was also observed in 2015.
Sex ratio stands at 117 males per 100 females
The sex ratio in the Municipality of Balbalan was computed at 117 in 2020. This means that there were 117 males for every 100 females. The sex ratio in 2015 was at 119 males per 100 females. 
In 2020, children aged below 15 years had a sex ratio of 106 males per 100 females, while those aged 15 to 64 years had a sex ratio of 126 males per 100 females. Moreover, among those aged 65 years and over, the sex ratio was 92 males per 100 females. This depicts a longer life expectancy among females than males or a higher mortality rate among males than females in the older age groups. (Figure 2)
Median age increases to 27.84 years 
The median age of the Household Population of the Municipality of Balbalan continues to rise during the past three decades. In 2020, the median age was computed at 27.84 years, which means that half of the household population was younger than 27.84 years, while the other half is older than 27.84 years. This is higher than the median ages of 27.1 years and 24.5 years that were posted in 2015 and 2010, respectively. (Figure 3)
Dependency ratio declines to 56 dependents per 100 persons in the working-age group
The overall dependency ratio of the Municipality of Balbalan was computed at 56, which indicates that for every 100 working-age or economically-active population, there were about 56 dependents (42 young dependents and 14 old dependents). This is lower than the dependency ratio in 2015, which was recorded at 64 dependents per 100 working-age population (50 young dependents and 13 old dependents). (Table 1)
There are more males than females in children under five years old 
Children below five years old comprised 8.23 percent (1,062 persons) of the Household Population which is lower than the 9.68 percent (1,177 persons) posted in 2015. The sex ratio in 2020 and 2015 were computed at 116 and 95 males per 100 females respectively. (Table 2)
Almost three in every eight household population are of school age 
In 2020, the school-age population (5 to 24 years old) accounted for 4,788 (37.11%) of the 12,900 Household Population compared to the 4,490 (36.94%) school-age population that was reported in 2015. (Table 2 and Figure 4)
Senior citizens constitute about 12.94 percent of the Household Population 
In the Municipality of Balbalan, people aged 60 years old and over are regarded as senior citizens. They made up 12.94 percent (1,670 persons) of the Household Population in 2020, higher than the 11.58 percent (1,408 persons) recorded in 2015. There were more females (50.11%) than males (49.88%) among the senior citizens, in 2020. The same trend was observed in 2015. (Table 2 and Figure 5)
Less than half of the female population are of reproductive age 
Women of reproductive age (15 to 49 years old) totaled to 2,819 or 47.4 percent of the 5,947 female household population in 2020. These figures were higher compared with the 44.21 percent (2,449 females) posted in 2015. (Table 2 and Figure 6)
Aging index increases by 10.4 points from 37.8 in 2015 to 48.2 in 2020 
In the Municipality of Balbalan, the aging index or the proportion of persons aged 60 years and over per 100 persons under the age of 15 years was computed at 48.2 percent in 2020. In 2015, the aging index was 10.4 points lower at 37.8 percent. (Table 2 and Figure 7)
Approved for Release:
(Supervising Statistical Specialist)
The Philippine Statistics Authority conducted the 2020 Census of Population and Housing (2020 CPH) in September 2020, with 01 May 2020 as reference date.
The 2020 CPH was the 15th census of population and 7th census of housing that was undertaken in the Philippines since the first census in 1903. It was designed to take inventory of the total population and housing units in the country and collect information about their characteristics.
The Philippine Standard Geographic Codes as of April 2022 was used for the disaggregation of geographic levels of the 2020 CPH.
Definition of Terms and Concepts
Household is a social unit consisting of person or a group of persons who sleep in the same housing unit and have a common arrangement in the preparation and consumption of food.
Household population refers to all persons who are members of the household.
Sex is the biological and physiological reality of being a male or female.
Age refers to the interval of time between the person’s date of birth and his/her last birthday prior to the census reference date. It is expressed in completed years or whole number.
Age-sex structure is the composition of a population as determined by the number or proportion of males and females in each age category. The age-sex structure of a population is the cumulative result of past trends in fertility, mortality, and migration. Information on age-sex composition is essential for the description and analysis of many other types of demographic data. 
Population pyramid is a bar chart, arranged vertically, that shows the distribution of a population by age and sex. By convention, the younger ages are at the bottom, with males on the left and females on the right.
Sex ratio is the number of males per one hundred females in a population.
Median age is the age that divides the population into two numerically equal groups; that is, half of the population are younger than this age and the other half are older.
Overall dependency ratio is the number of persons under 15 years old (young dependents) and persons aged 65 and older (old dependents) per one hundred persons 15 to 64 years old (working-age or economically-productive group) in a population.
Aging of population is a process in which the proportions of adults and elderly increase in a population, while the proportions of children and adolescents decrease. This process results in a rise in the median age of the population. Aging occurs when fertility rates decline while life expectancy remains constant or improves at the older ages.
Aging index is calculated as the number of persons 60 years old and over per one hundred persons under the age of 15 years.