Isabela: Most Populated Province in Cagayan Valley

Reference Number: 

2002-098

Release Date: 

Tuesday, July 30, 2002

 

Population growth rate at 2.25 percent

The total population of Isabela, as of May 1, 2000, was 1,287,575 persons. This implied an increase of 156,854 persons over the 1995 census figure or an average annual growth rate of 2.25 percent. This was 0.90 percentage point higher than the average growth rate recorded in 1995 (1.35 percent). A corresponding increase on the number of households was also registered, from 233,203 households in 1995 to 254,982 households in 2000. This resulted to an average household size of 5.05 persons, higher than the national average of five persons.

Ilagan, the provincial capital, the largest in terms of population

Among the 35 municipalities and two cities in Isabela, Ilagan, the capital of the province, was the largest in terms of population size with 119,990 persons or 9.32 percent of the total population of the province. This was followed by the City of Santiago (8.58 percent) and Cauayan (8.07 percent). All other municipalities had less than five percent each. Maconacon, the least populated municipality accounted for only 0.29 percent of the total population of the province.

Isabela, the most populated in Cagayan Valley

Isabela was the most populated among the five provinces in Cagayan Valley (Region II), comprising 45.7 percent of the 2.8 persons in the region. At the national level, the province contributed 1.7 percent to the total population of 76.5 million.

Median age of 20 years

Isabela had a median age of 20 years, the same as that of the 1995 figure. This meant that about half of the total population of the province were below 20 years old.

Sex ratio recorded at 105.4

For all ages, the sex ratio in Isabela was about 105 with 660,627 males and 626,948 females in the 2000 Census of Population and Housing (Census 2000). There were more males than females below 50 years old.

Close to three dependents for every four economically active persons

About 60 percent belonged to the economically active population (aged 15 to 64 years) while 37.66 percent were young dependents (aged 0 to 14 years) and less than four percent, old dependents (aged 65 years and over). The overall dependency ratio in 2000 was 70.31. This meant that for every 100 persons aged 15 to 64 years; there were about 66 young dependents and four old dependents, an improvement of 2.2 percentage points over the 1995 figure of 73.5.

More males belonged to the voting population than females

There were 719,577 persons or 55.89 percent of the total population belonging to 18 years old and over (voting population). Among them, the proportion of males (51.06 percent) was slightly higher than females (49.94 percent).

About half of female population were in the childbearing age group

Out of 626,948 total female population, 338,213 or 53.95 percent belonged to childbearing or reproductive age group (15 to 49 years).

Nearly 20 thousands were incoming Grade I pupils

Potential grade 1 pupils were those five or six years old and had completed pre-school education. In the Census 2000, there were 19,627 children or 1.74 percent of the total household population five years and over in Isabela, of which 49.61 percent were boys and 50.49 percent girls.

Females dominated higher levels of education

About 48.36 percent of population five years old and over had attended or completed elementary education; 27.31 percent, high school; and 3.35 percent, post secondary education. Less than four percent were academic degree holders while 9.07 percent had some units in college. A small proportion (0.44 percent) pursued post-baccalaureate studies. There were more males than females among those who had attended or finished elementary (52.35 percent), high school (51.05 percent) and post secondary courses (50.15 percent). However, females dominated higher level of education such as college undergraduates (50.86 percent), academic degree holders (58.95 percent) and post baccalaureate (61.36 percent).

Ilocano was the most prominent ethnic group

Ilocano was the most prominent ethnic group in Isabela. Of the total household population, 68.71 percent classified themselves as Ilocanos. The next two prominent ethnic groups were Ibanag (14.05 percent) and Tagalog (10.02 percent). The remaining 7.22 percent were either Gaddang, Paranan, Yogad, or were from other ethnic groups.

About 49 percent were married

Married persons accounted for 49.21 percent of the total persons 10 years old and over, lower by 2.82 percentage points than the 1995 figure (52.03 percent). Single persons comprised 43.40 percent in 2000, from 42.57 percent in 1995. The widowed (4.22 percent) had less than one percentage point difference with the proportion registered in 1995 (3.95 percent). Those in other marital arrangements constituted 2.22 percent, an increase of 1.20 percentage points from the 1995 figure (1.02 percent).

Four in ten housing units had floor area of less than 50 square meters

Four in ten occupied housing units had floor area of less than 50 square meters (78.38 percent). About 23 percent had floor area of 30 to 49 square meters. Almost an equal proportion (22.13 percent) had floor area of 20 to 29 square meters. Less than three percent of the occupied housing units had floor area of 120 and over square meters.

A large proportion (96.58 percent) of the occupied housing units in Isabela in 2000 were single houses. About two-thirds (65.32 percent) of the occupied housing units did not need repair or with minor repair only while 21.55 percent needs major repair. Almost one-third (33.44 percent) of the occupied housing units were built from 1996 to 2000.

Three out of four housing units had roof made of galvanized iron/aluminum

Out of the 249,742 occupied housing units in Isabela, the proportion with roof made of galvanized iron/aluminum was 73.33 percent, an improvement of 21.49 percentage points from the 1990 figure (51.84 percent).

As to the combination of construction materials used for roof and outer walls, two out of five of the occupied housing units were made of galvanized iron/aluminum as roof and concrete/brick/stone as outer walls, almost four times higher than the 1990 figure (13.04 percent).

ISABELA

Isabela is in the middle of Cagayan Valley in the northeastern Luzon. It is bounded on the north by Cagayan, on the east by the Pacific Ocean, on the west by Kalinga, Apayao, Mountain Province, and Ifugao; on the south by Nueva Vizcaya, Quirino and Aurora.

The eastern and coastal areas experience moderate rainfall evenly distributed throughout the year. The western part has a wet and a dry season.

The province was carved by royal decree from the provinces of Cagayan and Nueva Vizcaya on May 1, 1856. It was named after Queen Isabela II of Spain.

Palanan, Isabela became a historical place when General Emilio Aquinaldo was captured by the American forces led by General Funston on March 23, 1901.

Source: Fast Facts of Philippine Province
By Conrado M. Lancion, Jr.
Tahanan Books, Manila

  (Sgd.) CARMELITA N. ERICTA
Administrator

Table 1. Total Population of Top Ten Cities/ Municipalities and Sex: Isabela, 2000

Municipalities Both Sexes Percent Male Female
Isabela 1,287,575 100.00 660,627 626,948
     Ilagan 119,990 9.32 61,287 58,703
     City of Santiago 110,531 8.58 55,986 54,545
     Cauayan City 103,952 8.07 52,984 50,968
     Echague 61,101 4.75 31,373 29,728
     Alicia 57,178 4.44 29,233 27,945
     San Mateo 55,068 4.28 28,092 26,976
     Tumauini 50,256 3.90 25,453 24,803
     Roxas 48,929 3.80 25,113 23,816
     Cabagan 41,532 3.22 21,063 20,473
     Ramon 41,441 3.22 21,432 20,009
     Others 597,593 46.42 308,611 288,982

Source: NSO, 2000 Census of Population and Housing

Table 2. Total Population by Age Group, Sex and Sex Ratio: Isabela, 2000

All Ages Total Population Male Female Sex Ratio
Isabela 1,287,575 660,627 626,948 105.37
     Under 1 31,357 16,495 14,862 110.99
     1 to 4 125,753 65,747 60,006 109.57
     5 to 9 164,604 84,198 80,406 104.72
     10 to 14 163,209 83,777 79,432 105.47
     15 to 19 134,857 69,557 65,300 106.52
     20 to 24 117,872 60,572 57,300 105.71
     25 to 29 99,821 51,426 48,395 106.26
     30 to 34 91,819 47,004 44,815 104.88
     35 to 39 84,678 44,218 40,460 109.29
     40 to 44 71,115 36,933 34,182 108.05
     45 to 49 55,804 28,945 26,859 107.77
     50 to 54 42,367 21,465 20,902 102.69
     55 to 59 30,548 15,368 15,180 101.24
     60 to 64 27,125 13,236 13,889 95.30
     65 to 69 18,027 8,684 9,343 92.95
     70 to 74 12,460 5,795 6,665 86.95
     75 to 79 8,281 3,761 4,520 83.21
     80 & Over 7,878 3,446 4,432 77.75

Source: NSO, 2000 Census of Population and Housing

Table 3. Household Population 5 Years Old and Over by Highest Educational Attainment and Sex: Isabela, 2000

Highest Educational Attainment Household Population
5 Years Old & Over
Male Female
Isabela 1,129,438 577,557 551,881
     No Grade Completed 51,225 26,937 24,288
     Pre-School 24,787 12,604 12,183
     Elementary 546,144 285,890 260,254
     High School 308,421 157,461 150,960
     Post Secondary 37,884 18,998 18,886
     College Undergraduate 102,416 50,319 52,097
     Academic Degree Holder 38,156 15,664 22,492
     Post Baccalaureate 4,992 1,929 3,063
     Not Stated 15,413 7,755 7,658

Source: NSO, 2000 Census of Population and Housing

Table 4. Household Population by Ethnicity and Sex: Isabela, 2000

Ethnicity Both Sexes Male Female
Isabela 1,286,515 659,784 626,731
     Ilocano 883,982 454,837 429,145
     Ibanag 180,753 92,159 88,594
     Tagalog 128,883 64,777 64,106
     Yogad 17,246 8,869 8,377
     Paraan 14,067 7,393 6,674
     Gaddang 13,532 7,066 6,466
     Others 45,421 23,319 22,102
     Not Reported 2,631 1,364 1,267

Source: NSO, 2000 Census of Population and Housing

Table 5. Total Population 10 Years Old and Over by Age Group and Marital Status: Isabela, 2000

Age Group Total Population
10 Yrs Old & Over
Single Married Widowed Divorced/
Separated
Others Unknown
Isabela 965,861 419,150 475,313 40,723 5,855 21,463 3,357
     Below 20 298,066 283,799 10,142 274 143 1,921 1,787
     20 - 24 117,872 73,846 39,644 279 347 3,199 557
     25 - 29 99,821 30,789 64,518 476 549 3,190 299
     30 - 34 91,819 12,981 73,904 956 794 3,007 177
     35 - 39 84,678 6,725 72,417 1,565 961 2,886 124
     40 - 44 71,115 3,691 61,809 2,265 927 2,348 75
     45 - 49 55,804 2,482 47,675 3,160 729 1,718 40
     50 - 54 42,367 1,606 34,865 4,080 526 1,231 59
     55 - 59 30,548 897 24,074 4,454 354 733 36
     60 - 64 27,125 796 19,891 5,641 220 535 42
     65 - 69 18,027 490 12,108 4,942 132 309 46
     70 - 74 12,460 446 7,191 4,469 91 223 40
     75 - 79 8,281 257 4,130 3,729 42 95 28
     80 & Over 7,878 345 2,945 4,433 40 68 47

Source: NSO, 2000 Census of Population and Housing

Table 6. Total Occupied Housing Units by Construction Materials of the Outer Walls and Roof: Isabela, 2000

CONSTRUCTION
MATERIALS OF THE
OUTER WALLS
Total
Occupied
Housing
Units
CONSTRUCTION MATERIALS OF THE ROOF
Galvanized
Iron/
Aluminum
Tile/
Concrete/
Clay Tile
Half
Galvanized,
Iron/Half
Concrete
Wood Cogon/
Nipa/
Anahaw
Makeshift/
Salvaged/
Improvised
Materials
Asbestos/
Others
Not Reported
Isabela 249,742 183,134 720 7,950 1,222 53,851 1,082 353 1,430
     Concrete/Brick/Stone 94,710 93,040 441 543 30 622 12 22 -
     Wood 21,487 16,375 68 435 635 47,200 276 207 -
     Half Concrete/
       Brick/Stone
       and Half Wood
40,570 34,320 129 5,084 94 907 27 9 -
     Galvanized
       Iron/Aluminum
1,976 1,474 11 282 31 163 11 4 -
     Bamboo/Sawali/
       Cogon/Nipa
84,036 34,537 - 1,419 396 47,200 246 207 1
     Asbestos 125 90 17 6 4 - - 8 -
     Glass 51 38 9 1 1 - - 2 -
     Makeshift/Salvaged/
       Improvised
       Materials
2,491 1,135 - 43 5 592 701 15 -
     Others/Not Reported 3,797 1,850 19 129 14 327 11 18 1,429
     No Walls 499 275 26 8 12 169 5 4 -

Source: NSO, 2000 Census of Population and Housing

 

TECHNICAL NOTES

Average Household Size - average number of people who live in the household

Growth Rate - the rate at which the population is increasing (or decreasing) in a given year due to natural increase and net migration, expressed as a percentage of the base population

Sex Ratio - the ratio of males to females in a given population expressed as the number of males per 100 females

Age-Dependency Ratio - the ratio of persons in the "dependent" ages (under 15 years and over 64 years) to those in the "economically productive" ages (15 to 64 years old) in the population.

Household - a social unit consisting of a person or a group of persons who sleep in the same housing unit and have common arrangements in the preparation and consumption of food

The 2000 Census of Population and Housing (Census 2000), was undertaken by the National Statistics Office (NSO) in May 2000, as mandated by Commonwealth Act No. 591, Batas Pambansa Blg. 72 and Executive Order No. 121. It was the 11th census of population and 5th census of housing undertaken in this country since the first census in 1903. It was designed to take an inventory of the total population and housing units all over the Philippines and to collect information about their characteristics. Census day for the Census 2000 was May 1, 2000 (12:01 a.m.). Enumeration started on May 1, 2000 and lasted for about 30 days.

 






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