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| Highlights |
| Demographic Characteristics of Itbayat |
| The Barangays - Nearly one out of three Itbayatans or 29% of the population live in the town proper of Santa Rosa (Kaynatuan). Median Age - In 1995, the median age in Itbayat was 18.7 years. Because of a higher life expectancy, the median age of Itbayat women was greater than that of Itbayat men by 1.5 years, 19.6 years and 18.1 years, respectively. Age Structure - While the median age shows the aging of the population, a more |
| detailed picture may be obtained by looking at age groups. A useful breakdown distinguishes between persons aged under 15 (children), those 15-64 (working age population) and those 65 and over (elderly). In 1995, children accounted for 44.7% of the total population of Itbayat compared to 37.8 for Batanes. Working age population accounted for 48.2% while the proportion of persons aged 65 and over was 7.1%. |
| A greater proportion of women than of men were aged 65 and over, 8.4% and 6%, respectively. The major difference between the figures for men and women in this age group was primarily because of higher male mortality. Dependency Ratio - The various dependency ratios (for children, for the aged, and the total ratio) also serve as useful indicators since they provide information on the economic burden that is borne by the adult population. |
| Itbayat's total dependency ratio (ratio of the sum of those aged 0-14 and those 65 and over to those 15-64) was 107.6% in 1995. A breakdown of the total dependency ratio shows that the child dependency ratio was 92.8% and the elderly was 14.8%. Sex Ratio - In 1995, Itbayat's sex ratio (number of males per 100 females) was 114.6% compared to 102.6 for Batanes. On the masculinity ratio of the elderly, Itbayat has 81% compared to 79% for Batanes. Marital Status - In 1995, the proportion of single people was 46% of the population. The percentage of married people and widowed persons was 47.4% and 5%, respectively. As of the 1995 Census, there were two separated/divorced people in Itbayat. |
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| CENSUS POPULATION, ITBAYAT, BATANES |
| 0.0 |
| Thousands |
| 1903 |
| 1.0 |
| 1.5 |
| 2.0 |
| 2.5 |
| 3.0 |
| 3.5 |
| 4.0 |
| 4.5 |
| 1918 |
| 1939 |
| 1948 |
| 1960 |
| 1970 |
| 1975 |
| 1980 |
| 1990 |
| 1995 |
| 2000 |
| Source: National Statistics Office |
| 1.2 |
| 1.4 |
| 1.6 |
| 2.0 |
| 2.4 |
| 2.8 |
| 3.0 |
| 2.9 |
| 3.4 |
| 3.1 |
| 3.6 |
| CENSUS POPULATION, ITBAYAT, BATANES, 2000 |
| Source: National Statistics Office |
| Raele 480 13.3% |
| Sta. Maria (Marapuy) 601 16.6% |
| San Rafael (Idiang) 754 20.9% |
| Sta. Lucia (Kauhauhasan) 737 20.4% |
| Sta. Rosa (Kaynatuan) 1,044 28.9% |
| 0.5 |
| The other municipalities: The proportion of the population who attended or completed elementary education was highest in Sabtang (45.9%) and the lowest in Basco (30.8%), while the proportion of those who reached or completed high school was highest in Itbayat (36%) and lowest in Basco (26.1%). In contrast, the proportion for those who attended or completed post-secondary education was highest in Basco (34.5%) and the lowest in Itbayat (12.4%). The proportion of bachelor's degree holders or higher was highest in Basco (14.1%) and the lowest in Itbayat (4.5%). In the other muncipalities, the proportion was 10.8% in Ivana, 10.7% in Uyugan, 8.1% in Mahatao and 5.5% in Sabtang. In Sabtang, post-graduates represented 2.7% of the population aged 5 and over, the highest of any municipality. Elsewhere, the proportion ranges from 2.1% in Ivana to 0.3% in Itbayat. |
| Bachelor's degree holders highest in Basco |
| Post-graduates highest in Sabtang |
| Educational attainment - In 1995, 42 per cent of Itbayat's household population aged 5 and over attended or completed elementary education. On the other hand, 36 per cent had reached or completed high school while 13 per cent had attended or graduated from university or other post-secondary institutions. Of the post-secondary graduates, 119 were university graduates with a bachelor's degree or higher. These university graduates represented 5 per cent of the population aged 5 and over. Of these, post-graduates accounted for 0.3 per cent. |
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| POPULATION BY EDUCATIONAL ATTAINMENT, ITBAYAT, BATANES |
| Source: National Statistics Office |
| FEMALE |
| MALE |
| No Grade |
| Pre-School |
| Elementary |
| High School |
| Post-Secondary |
| College Undergraduate |
| Academic Degree Holder |
| Post-Baccalaureate |
| 43.5% |
| 32.2% |
| 3.9% |
| 5.8% |
| 4.9% |
| 5.9% |
| 0.2% |
| 5.4% |
| 3.7% |
| 2.9% |
| 4.1% |
| 4.1% |
| 39.4% |
| 40.1% |
| 0.3% |
| 3.7% |
| The Population - According to the 2000 Census of Population and Housing, the population of Itbayat was 3,616 on May 1, 2000, up 487 from the 1995 Census, representing an average annual growth of 2.9%. This compares to a negative growth of 1.9% between 1990 and 1995. |
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| The Municipalities |
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