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Estimates and Future Projections of Demography

The projected population at the start of the planning period in 2018 is 59,658. Assuming a constant annual growth of 1.72%, the projected population in 2028 is 70,835. There are 12,613 projected number of households in 2018 which will grow to 14,976 in 2028. Urban population is projected to be 15,150 in 2018 and 17,988 in 2028. The number of people living in the rural barangays will increase from 44,508 in 2018 to 52,847 by 2028. The doubling time, or the time required for Irosin’s population to double itself given the present fixed growth rate of 1.72% is 40 years. (Refer to Table DE-11) By 2018, the school age going continue reading : Estimates and Future Projections of Demography

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Population Change

Historical Growth of Population Irosin’s population has grown from 8,644 in 1903 to 56,662 in 2015 with a cumulative increase of 48,081 or 556%. In this 112 years period, the average growth rate of the population is 1.68% per year. From the first census in 1903 to 1918, the population grew by 3.39% annually. There was a sharp decline in growth in the period 1918 to 1939 that rebounded back up to 1.79% annually by 1980. From 1980, there was again a decline to 1990 and increasing trend up to 2.23% by 2000. There is a decreasing trend in annual population growth rate from a high of 3.39% in the continue reading : Population Change

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Other Population Characteristics

Labor Force Population and Employment The labor force population, or those 15 years and over, is 36,194 or 64% of the total population in 2015. Of these, 52% are employed while 48% are not employed . Of all males 15 years and above, 73% are employed while only 30% are female. The provincial employment rate is at 56%. The local unemployment rate in 2013 is 17.9% . Of the 18,646 gainfully employed population, 28% are laborers and unskilled worker, 22% are skilled agricultural workers, 15% are service and sales workers, 8% are craft and related trades workers. (Refer to Table DE-9)   Literacy, Educational Attainment and Attendance to School In continue reading : Other Population Characteristics

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Population Distribution

Urban and Rural Population The 2015 urban population is 14,839 or 25% of the total population while the rural population is 42,273 or 75% of the total population. Households distribution is 26% or 3,113 are in urban barangays and 74% or 8,865 are in rural barangays. The most populated barangay is the urban barangay of Bacolod with a population of 4,518. Among the contributory factors leading to the high population of Bacolod is its proximity to town center or the central business district (CBD), the high density of housing units and the presence of informal settlers in the river control dike and at riverbanks. The second most populous barangay is continue reading : Population Distribution

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Population Composition

Population and Households The population of Irosin as of August 1, 2015 was 56,662 based on the 2015 PSA Census of Population. Irosin’s population is higher by 4,885 compared with the population of 51,777 in 2010, and by 11,155 compared with the population of 45,507 in 2000. The rate at which the population grew during the period 2010 to 2015 was 1.72%. Irosin’s population accounted for 7.15% of Sorsogon province total population of 792,949 and ranked sixth in terms of number of population. There are 11,978 documented households in the same year and the average household size is 4.73. The population for the year 2018 is projected to be 59,658 continue reading : Population Composition

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