Isabela Posted 20-Percent Increase In Number Of Households (Results From The 2007 Census Of Population

Reference Number: 


Release Date: 

Thursday, October 29, 2009

Population increased by 8.8 percent since 2000

The province of Isabela had a total population of 1,401,495 persons as of August 1, 2007, an increase of 8.8 percent from 1,287,575 persons reported in 2000. This increase translates to an annual population growth rate (PGR) of 1.18 percent during the period 2000 to 2007, which is 1.07 percentage point lower than the 2.25 percent PGR reported from 1995 to

Ilagan was the most populous municipality

Among the 2 cities and 35 municipalities of Isabela, Ilagan, which is the provincial capital was the biggest municipality in 2007 in terms of population size. This municipality contributed 131,243 persons or 9.4 percent to the total population of the province. This was followed by the City of Santiago with 126,244 persons and City of Cauayan with 114,254 persons. These areas were also the top three cities/municipality of the province in terms of population size in 2000. On the other hand, the least populous municipality in 2007 was Maconacon (3,991 persons) while in 2000, it was Dinapigue (3,171 persons).

Figure 1

Number of households increased by 20.4 percent

The household population of Isabela in 2007 was 1,400,611 persons, an increase of 8.9 percent from 1,286,515 persons in 2000. The number of households, meanwhile, increased by 20.4 percent from 254,982 in 2000 to 306,908 in 2007. The computed average household size in 2007 was 4.6 persons, lower than the average household size of 5.1 persons in 2000.

Sex ratio remained at 105 males per 100 females

There were more males (51.3 percent) than females (48.7 percent) in the province in 2007. These figures imply a sex ratio of 105 males for every 100 females, the same sex ratio recorded in 2000.

Figure 1

Median age increased to 23 years

In 2007, the median age of the household population of the province was 23 years, which means that half of the household population were below 23 years old. This was three years higher than the median age computed based on 2000 census.

Age group 10 to 14 years posted the highest proportion to household population with 11.7 percent, followed closely by age groups 5 to 9 and 0 to 4 years, which contributed 11.2 percent each to the total household population. There were more males than females in ages 0 to 54 years while more females than males were reported in ages 55 years and over.

The household population 18 years old and over accounted for about 59.3 percent, which comprise the voting-age population of Isabela. This indicates an increase of 3.4 percentage points from the voting-age population of 55.9 percent in 2000. Males (50.9 percent) outnumbered their female counterparts (49.1 percent) in the voting-age population of the province in 2007.

Dependents decreased from 70 to 62 persons per 100 persons in the working-age population

More than three fifths (61.8 percent) of the household population belonged to the working-age population (15 to 64 years). About 34.0 percent were young dependents (under 15 years) while 4.3 percent were old dependents (65 years and over).

The overall dependency ratio in 2007 was 61.9, down from 70.4 in 2000. This means that for every 100 persons in the working-age population in 2007, there were 62 dependents, comprising of 55 young dependents and 7 old dependents.

More than half of female household population were of childbearing age

Out of the 682,101 female household population in 2007, 51.8 percent belonged to childbearing ages (15 to 49 years). This was higher than the proportion of childbearing-age population in 2000 at 50.6 percent.

Married persons comprised majority of the household population

Of the 1,087,782 household population 10 years old and over, more than half (52.5 percent) were married while 40.4 percent were single. The remaining proportion were either widowed, divorced/separated, had common-law/live-in marital arrangement, or had unknown marital status. Among singles, there were more males than females. However, females outnumbered males in all other categories for marital status.

More females earned academic degrees than males

Approximately 41.8 percent of the household population 5 years old and over had attended or completed elementary education, 32.3 had reached or finished high school, 7.6 percent were college undergraduates, and 7.4 percent were academic degree holders. Of the total household population 5 years old and over, a higher proportion of females (4.3 percent) than males (3.2 percent) were academic degree holders.

About 36.5 percent did not attend school

Of the household population 5 to 24 years old, 63.5 percent had attended school during School Year 2007 to 2008. This means that about 3 in every 8 persons (36.5 percent) aged 5 to 24 years old did not attend school. Most of the school attendees belonged to age groups 10 to 14 years (39.7 percent) and 5 to 9 years (37.5 percent). Percentage of school attendance among males (50.6 percent) was higher than those for females (49.4 percent) during School Year 2007 to 2008.

Occupied housing units increased by 21.5 percent

In 2007, there were 303,365 occupied housing units in Isabela. This was 21.5 percent higher than the number of occupied housing units (249,742) recorded in 2000. A ratio of 101 households per 100 occupied housing units was recorded in 2007, lower than the ratio of 102 households per 100 occupied housing units in 2000. Moreover, the number of persons per occupied housing unit was computed at 4.6 persons, lower than the ratio of 5.2 persons per occupied housing unit in 2000.

Proportion of occupied housing units with strong materials for roofs and walls increased

Among the 303,365 occupied housing units in Isabela, about half (50.3 percent) had outer walls made of concrete/brick/stone while 85.2 percent had roofs made of galvanized iron/aluminum. These construction materials were also the primary materials used for outer walls and roofs in 2000.

Nearly half (49.7 percent) of the occupied housing units in Isabela had walls made of concrete/brick/stone and roofs made of galvanized iron/aluminum, up by 12.4 percentage points from 37.3 percent in 2000.

Majority lived in owned or amortized lots

A total of 265,647 households (86.6 percent) owned or amortized the lots they occupied, 28,404 households (9.3 percent) had an arrangement of rent-free with consent of owner, while 9,149 households (3.0 percent) rented the lots they occupied.





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Technical Notes


  Source:  Household Statistics Department
               National Statistics Office
               Manila, Philippines